Toshiaki Koike-Akino

Toshiaki Koike-Akino
Toshi's Quick Links

  • Biography

    Prior to joining MERL in 2010, Toshiaki was a postdoctoral researcher at Harvard University. His research interests include signal processing, sensing, coding theory, and information theory. He received best paper awards at IEEE GLOBECOM in 2008 and 2009.

  • Recent News & Events

    •  NEWS    Toshiaki Koike-Akino to give a seminar talk at EPFL on quantum AI
      Date: May 22, 2024
      MERL Contact: Toshiaki Koike-Akino
      Research Areas: Artificial Intelligence, Machine Learning
      Brief
      • Toshiaki Koike-Akino is invited to present a seminar talk at EPFL, Switzerland. The talk, entitled "Post-Deep Learning: Emerging Quantum AI Technology", will discuss the recent trends, challenges, and applications of quantum machine learning (QML) technologies. The seminar is organized by Prof. Volkan Cevher and Prof. Giovanni De Micheli. The event invites students, researchers, scholars and professors through EPFL departments including School of Engineering, Communication Science, Life Science, Machine Learning and AI Center.
    •  
    •  NEWS    MERL Papers and Workshops at CVPR 2024
      Date: June 17, 2024 - June 21, 2024
      Where: Seattle, WA
      MERL Contacts: Petros T. Boufounos; Moitreya Chatterjee; Anoop Cherian; Michael J. Jones; Toshiaki Koike-Akino; Jonathan Le Roux; Suhas Lohit; Tim K. Marks; Pedro Miraldo; Jing Liu; Kuan-Chuan Peng; Pu (Perry) Wang; Ye Wang; Matthew Brand
      Research Areas: Artificial Intelligence, Computational Sensing, Computer Vision, Machine Learning, Speech & Audio
      Brief
      • MERL researchers are presenting 5 conference papers, 3 workshop papers, and are co-organizing two workshops at the CVPR 2024 conference, which will be held in Seattle, June 17-21. CVPR is one of the most prestigious and competitive international conferences in computer vision. Details of MERL contributions are provided below.

        CVPR Conference Papers:

        1. "TI2V-Zero: Zero-Shot Image Conditioning for Text-to-Video Diffusion Models" by H. Ni, B. Egger, S. Lohit, A. Cherian, Y. Wang, T. Koike-Akino, S. X. Huang, and T. K. Marks

        This work enables a pretrained text-to-video (T2V) diffusion model to be additionally conditioned on an input image (first video frame), yielding a text+image to video (TI2V) model. Other than using the pretrained T2V model, our method requires no ("zero") training or fine-tuning. The paper uses a "repeat-and-slide" method and diffusion resampling to synthesize videos from a given starting image and text describing the video content.

        Paper: https://www.merl.com/publications/TR2024-059
        Project page: https://merl.com/research/highlights/TI2V-Zero

        2. "Long-Tailed Anomaly Detection with Learnable Class Names" by C.-H. Ho, K.-C. Peng, and N. Vasconcelos

        This work aims to identify defects across various classes without relying on hard-coded class names. We introduce the concept of long-tailed anomaly detection, addressing challenges like class imbalance and dataset variability. Our proposed method combines reconstruction and semantic modules, learning pseudo-class names and utilizing a variational autoencoder for feature synthesis to improve performance in long-tailed datasets, outperforming existing methods in experiments.

        Paper: https://www.merl.com/publications/TR2024-040

        3. "Gear-NeRF: Free-Viewpoint Rendering and Tracking with Motion-aware Spatio-Temporal Sampling" by X. Liu, Y-W. Tai, C-T. Tang, P. Miraldo, S. Lohit, and M. Chatterjee

        This work presents a new strategy for rendering dynamic scenes from novel viewpoints. Our approach is based on stratifying the scene into regions based on the extent of motion of the region, which is automatically determined. Regions with higher motion are permitted a denser spatio-temporal sampling strategy for more faithful rendering of the scene. Additionally, to the best of our knowledge, ours is the first work to enable tracking of objects in the scene from novel views - based on the preferences of a user, provided by a click.

        Paper: https://www.merl.com/publications/TR2024-042

        4. "SIRA: Scalable Inter-frame Relation and Association for Radar Perception" by R. Yataka, P. Wang, P. T. Boufounos, and R. Takahashi

        Overcoming the limitations on radar feature extraction such as low spatial resolution, multipath reflection, and motion blurs, this paper proposes SIRA (Scalable Inter-frame Relation and Association) for scalable radar perception with two designs: 1) extended temporal relation, generalizing the existing temporal relation layer from two frames to multiple inter-frames with temporally regrouped window attention for scalability; and 2) motion consistency track with a pseudo-tracklet generated from observational data for better object association.

        Paper: https://www.merl.com/publications/TR2024-041

        5. "RILA: Reflective and Imaginative Language Agent for Zero-Shot Semantic Audio-Visual Navigation" by Z. Yang, J. Liu, P. Chen, A. Cherian, T. K. Marks, J. L. Roux, and C. Gan

        We leverage Large Language Models (LLM) for zero-shot semantic audio visual navigation. Specifically, by employing multi-modal models to process sensory data, we instruct an LLM-based planner to actively explore the environment by adaptively evaluating and dismissing inaccurate perceptual descriptions.

        Paper: https://www.merl.com/publications/TR2024-043

        CVPR Workshop Papers:

        1. "CoLa-SDF: Controllable Latent StyleSDF for Disentangled 3D Face Generation" by R. Dey, B. Egger, V. Boddeti, Y. Wang, and T. K. Marks

        This paper proposes a new method for generating 3D faces and rendering them to images by combining the controllability of nonlinear 3DMMs with the high fidelity of implicit 3D GANs. Inspired by StyleSDF, our model uses a similar architecture but enforces the latent space to match the interpretable and physical parameters of the nonlinear 3D morphable model MOST-GAN.

        Paper: https://www.merl.com/publications/TR2024-045

        2. “Tracklet-based Explainable Video Anomaly Localization” by A. Singh, M. J. Jones, and E. Learned-Miller

        This paper describes a new method for localizing anomalous activity in video of a scene given sample videos of normal activity from the same scene. The method is based on detecting and tracking objects in the scene and estimating high-level attributes of the objects such as their location, size, short-term trajectory and object class. These high-level attributes can then be used to detect unusual activity as well as to provide a human-understandable explanation for what is unusual about the activity.

        Paper: https://www.merl.com/publications/TR2024-057

        MERL co-organized workshops:

        1. "Multimodal Algorithmic Reasoning Workshop" by A. Cherian, K-C. Peng, S. Lohit, M. Chatterjee, H. Zhou, K. Smith, T. K. Marks, J. Mathissen, and J. Tenenbaum

        Workshop link: https://marworkshop.github.io/cvpr24/index.html

        2. "The 5th Workshop on Fair, Data-Efficient, and Trusted Computer Vision" by K-C. Peng, et al.

        Workshop link: https://fadetrcv.github.io/2024/

        3. "SuperLoRA: Parameter-Efficient Unified Adaptation for Large Vision Models" by X. Chen, J. Liu, Y. Wang, P. Wang, M. Brand, G. Wang, and T. Koike-Akino

        This paper proposes a generalized framework called SuperLoRA that unifies and extends different variants of low-rank adaptation (LoRA). Introducing new options with grouping, folding, shuffling, projection, and tensor decomposition, SuperLoRA offers high flexibility and demonstrates superior performance up to 10-fold gain in parameter efficiency for transfer learning tasks.

        Paper: https://www.merl.com/publications/TR2024-062
    •  

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  • Awards

    •  AWARD    MERL’s Paper on Wi-Fi Sensing Earns Top 3% Paper Recognition at ICASSP 2023, Selected as a Best Student Paper Award Finalist
      Date: June 9, 2023
      Awarded to: Cristian J. Vaca-Rubio, Pu Wang, Toshiaki Koike-Akino, Ye Wang, Petros Boufounos and Petar Popovski
      MERL Contacts: Petros T. Boufounos; Toshiaki Koike-Akino; Pu (Perry) Wang; Ye Wang
      Research Areas: Artificial Intelligence, Communications, Computational Sensing, Dynamical Systems, Machine Learning, Signal Processing
      Brief
      • A MERL Paper on Wi-Fi sensing was recognized as a Top 3% Paper among all 2709 accepted papers at the 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2023). Co-authored by Cristian Vaca-Rubio and Petar Popovski from Aalborg University, Denmark, and MERL researchers Pu Wang, Toshiaki Koike-Akino, Ye Wang, and Petros Boufounos, the paper "MmWave Wi-Fi Trajectory Estimation with Continous-Time Neural Dynamic Learning" was also a Best Student Paper Award finalist.

        Performed during Cristian’s stay at MERL first as a visiting Marie Skłodowska-Curie Fellow and then as a full-time intern in 2022, this work capitalizes on standards-compliant Wi-Fi signals to perform indoor localization and sensing. The paper uses a neural dynamic learning framework to address technical issues such as low sampling rate and irregular sampling intervals.

        ICASSP, a flagship conference of the IEEE Signal Processing Society (SPS), was hosted on the Greek island of Rhodes from June 04 to June 10, 2023. ICASSP 2023 marked the largest ICASSP in history, boasting over 4000 participants and 6128 submitted papers, out of which 2709 were accepted.
    •  
    •  AWARD    Toshiaki Koike-Akino elected Fellow of Optica
      Date: November 18, 2021
      Awarded to: Toshiaki Koike-Akino
      MERL Contact: Toshiaki Koike-Akino
      Research Areas: Communications, Electronic and Photonic Devices, Signal Processing
      Brief
      • Toshiaki Koike-Akino's research activities in communications, error control coding and optical technologies at MERL have earned him election as a Fellow Member of Optica (formerly OSA), the foremost professional association in optics and photonics worldwide. Fellow membership in Optica is limited to no more than ten percent of the membership and is reserved for members who have served with distinction in the advancement of optics and photonics. Koike-Akino is one of 106 members from 24 countries in Optica’s 2022 Fellows Class, elected during the Board of Directors of Optica meeting held on 2nd of November, 2021.

        “Congratulations to the 2022 Optica Fellows,” said 2021 President Connie Chang-Hasnain, University of California, Berkeley, USA. “These members exemplify what it means to be a leader in optics and photonics. Your election, by your peers, confirms the important contributions made within our field. Thank you for your dedication to Optica, and for advancing the science of light.”

        Koike-Akino's elevation to Fellow is specifically “for outstanding and innovative contributions to R&D in enabling technologies for optical communications, including nonlinear equalizers, high-dimensional modulations, and FEC (Forward Error Correction),” said Meredith Smith, Director, Optica Awards and Honors Office. "Again, congratulations on joining this esteemed group of Optica members."

        About Optica

        Optica (formerly OSA) is dedicated to promoting the generation, application, archiving and dissemination of knowledge in optics and photonics worldwide. Founded in 1916, it is the leading organization for scientists, engineers, business professionals, students and others interested in the science of light. Optica’s renowned publications, meetings, online resources and in-person activities fuel discoveries, shape real-life applications and accelerate scientific, technical and educational achievement.
    •  
    •  AWARD    MERL Ranked 1st Place in Cross-Subject Transfer Learning Task and 4th Place Overall at the NeurIPS2021 BEETL Competition for EEG Transfer Learning.
      Date: November 11, 2021
      Awarded to: Niklas Smedemark-Margulies, Toshiaki Koike-Akino, Ye Wang, Deniz Erdogmus
      MERL Contacts: Toshiaki Koike-Akino; Ye Wang
      Research Areas: Artificial Intelligence, Signal Processing, Human-Computer Interaction
      Brief
      • The MERL Signal Processing group achieved first place in the cross-subject transfer learning task and fourth place overall in the NeurIPS 2021 BEETL AI Challenge for EEG Transfer Learning. The team included Niklas Smedemark-Margulies (intern from Northeastern University), Toshiaki Koike-Akino, Ye Wang, and Prof. Deniz Erdogmus (Northeastern University). The challenge addresses two types of transfer learning tasks for EEG Biosignals: a homogeneous transfer learning task for cross-subject domain adaptation; and a heterogeneous transfer learning task for cross-data domain adaptation. There were 110+ registered teams in this competition, MERL ranked 1st in the homogeneous transfer learning task, 7th place in the heterogeneous transfer learning task, and 4th place for the combined overall score. For the homogeneous transfer learning task, MERL developed a new pre-shot learning framework based on feature disentanglement techniques for robustness against inter-subject variation to enable calibration-free brain-computer interfaces (BCI). MERL is invited to present our pre-shot learning technique at the NeurIPS 2021 workshop.
    •  
    •  AWARD    MERL researchers presented 5 papers at the 2016 Optical Fiber Communication Conference (OFC), including one "Top Scored" paper
      Date: March 24, 2016
      Awarded to: Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Tsuyoshi Yoshida, Takashi Sugihara
      MERL Contacts: Toshiaki Koike-Akino; Kieran Parsons
      Research Areas: Communications, Electronic and Photonic Devices, Signal Processing
      Brief
      • Five papers from the Optical Comms team were presented at the 2016 Optical Fiber Conference (OFC) held in Anaheim, USA in March 2016. The papers relate to enhanced modulation formats, constellation shaping, chromatic dispersion estimation, low complexity adaptive equalization and coding for coherent optical links. The top-scored paper studied optimal selection of coding and modulation sets to jointly maximize nonlinear tolerance and spectral efficiency.
    •  
    •  AWARD    TELECOM Systems Technology Award
      Date: January 1, 2011
      Awarded to: Toshiaki Koike-Akino
      Awarded for: his recent papers
      Awarded by: Telecommunications Advancement Foundation of Japan
      MERL Contact: Toshiaki Koike-Akino
      Research Area: Communications
      Brief
      • MERL researcher Toshiaki Koike was granted a "TELECOM Systems Technology Award" for by the Telecommunications Advancement Foundation of Japan.
    •  
    •  AWARD    GLOBECOM 2009 Best Paper Award
      Date: November 1, 2009
      Awarded to: Toshiaki Koike-Akino, Andreas Molisch, Zhifeng Tao, Philip Orlik and Toshiyuki Kuze
      Awarded for: "Unified Analysis of Linear Block Precoding for Distributed Antenna Systems"
      Awarded by: Global Telecommunications Conference (GLOBECOM)
      MERL Contacts: Toshiaki Koike-Akino; Philip V. Orlik
      Research Area: Communications
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  • Research Highlights

  • MERL Publications

    •  Chen, X., Liu, J., Wang, Y., Wang, P., Brand, M., Wang, G., Koike-Akino, T., "SuperLoRA: Parameter-Efficient Unified Adaptation for Large Vision Models", IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June 2024.
      BibTeX TR2024-062 PDF
      • @inproceedings{Chen2024jun,
      • author = {Chen, Xiangyu and Liu, Jing and Wang, Ye and Wang, Pu and Brand, Matthew and Wang, Guanghui and Koike-Akino, Toshiaki}},
      • title = {SuperLoRA: Parameter-Efficient Unified Adaptation for Large Vision Models},
      • booktitle = {IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
      • year = 2024,
      • month = jun,
      • url = {https://www.merl.com/publications/TR2024-062}
      • }
    •  Ni, H., Egger, B., Lohit, S., Cherian, A., Wang, Y., Koike-Akino, T., Huang, S.X., Marks, T.K., "TI2V-Zero: Zero-Shot Image Conditioning for Text-to-Video Diffusion Models", IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June 2024.
      BibTeX TR2024-059 PDF Video Software Presentation
      • @inproceedings{Ni2024jun,
      • author = {Ni, Haomiao and Egger, Bernhard and Lohit, Suhas and Cherian, Anoop and Wang, Ye and Koike-Akino, Toshiaki and Huang, Sharon X. and Marks, Tim K.},
      • title = {TI2V-Zero: Zero-Shot Image Conditioning for Text-to-Video Diffusion Models},
      • booktitle = {IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
      • year = 2024,
      • month = jun,
      • url = {https://www.merl.com/publications/TR2024-059}
      • }
    •  Kojima, K., Koike-Akino, T., "Universal Photonic Neural Networks with Quantum-Free Data Reuploading", SPIE Photonics for Quantum, June 2024.
      BibTeX TR2024-074 PDF
      • @inproceedings{Kojima2024jun,
      • author = {Kojima, Keisuke and Koike-Akino, Toshiaki}},
      • title = {Universal Photonic Neural Networks with Quantum-Free Data Reuploading},
      • booktitle = {SPIE Photonics for Quantum},
      • year = 2024,
      • month = jun,
      • url = {https://www.merl.com/publications/TR2024-074}
      • }
    •  Fujihashi, T., Koike-Akino, T., Corcodel, R., "Graph-Based Analog Joint Source Channel Coding for 3D Haptic Communication", IEEE International Conference on Communications (ICC), June 2024.
      BibTeX TR2024-070 PDF
      • @inproceedings{Fujihashi2024jun,
      • author = {Fujihashi, Takuya and Koike-Akino, Toshiaki and Corcodel, Radu}},
      • title = {Graph-Based Analog Joint Source Channel Coding for 3D Haptic Communication},
      • booktitle = {IEEE International Conference on Communications (ICC)},
      • year = 2024,
      • month = jun,
      • url = {https://www.merl.com/publications/TR2024-070}
      • }
    •  Liu, J., Lowy, A., Koike-Akino, T., Parsons, K., Wang, Y., "Efficient Differentially Private Fine-Tuning of Diffusion Models", arXiv, June 2024.
      BibTeX arXiv
      • @article{Liu2024jun,
      • author = {Liu, Jing and Lowy, Andrew and Koike-Akino, Toshiaki and Parsons, Kieran and Wang, Ye}},
      • title = {Efficient Differentially Private Fine-Tuning of Diffusion Models},
      • journal = {arXiv},
      • year = 2024,
      • month = jun,
      • url = {https://arxiv.org/abs/2406.05257}
      • }
    See All MERL Publications for Toshi

  • Other Publications

    •  Toshiaki Koike-Akino, "Adaptive network coding in two-way relaying MIMO system", Proc. The IEEE Global Telecommunications Conference (GLOBECOM), December 2010.
      BibTeX
      • @Inproceedings{Koike2010GLOBECOM12nc,
      • author = {Koike-Akino, Toshiaki},
      • title = {Adaptive network coding in two-way relaying MIMO system},
      • booktitle = {Proc. The IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2010,
      • address = {Miami},
      • month = dec
      • }
    •  Toshiaki Koike-Akino, Takashi Hamahata, Toshiro Akino and Takeharu Goji Etoh, "Device simulation and experimental measurement of high--voltage U--CBiCMOS buffer driver for ultra--high--speed CCD image sensors", Proc. The 15th Workshop on Synthesis And System Integration of Mixed Information technologies (SASIMI), October 2010.
      BibTeX
      • @Inproceedings{Koike2010SASIMI10,
      • author = {Koike-Akino, Toshiaki and Hamahata, Takashi and Akino, Toshiro and Etoh, Takeharu Goji},
      • title = {Device simulation and experimental measurement of high--voltage U--CBiCMOS buffer driver for ultra--high--speed CCD image sensors},
      • booktitle = {Proc. The 15th Workshop on Synthesis And System Integration of Mixed Information technologies (SASIMI)},
      • year = 2010,
      • month = oct
      • }
    •  Takeharu Goji Etoh, Dao Vu Truong Son, Toshiaki Koike-Akino, Toshiro Akino, Masatoshi Kureta and Masatoshi Arai, "Ultra-high-speed image signal accumulation sensor", Sensors Journal, Vol. 10, No. 4, pp. 1-15, August 2010.
      BibTeX
      • @Article{Koike2010Sensors08,
      • author = {Etoh, Takeharu Goji and Son, Dao Vu Truong and Koike-Akino, Toshiaki and Akino, Toshiro and Kureta, Masatoshi and Arai, Masatoshi},
      • title = {Ultra-high-speed image signal accumulation sensor},
      • journal = {Sensors Journal},
      • year = 2010,
      • volume = 10,
      • number = 4,
      • pages = {1--15},
      • month = aug
      • }
    •  Jesper H. Sørensen, Rasmus Krigslund, Petar Popovski, Toshiaki Koike Akino and Torben Larsen, "Scalable denoise-and-forward in bidirectional relay networks", Computer Networks, Vol. 54, No. 10, pp. 1607-1614, July 2010.
      BibTeX
      • @Article{Koike2010CNet07,
      • author = {Sorensen, Jesper H. and Krigslund, Rasmus and Popovski, Petar and Koike Akino, Toshiaki and Larsen, Torben},
      • title = {Scalable denoise-and-forward in bidirectional relay networks},
      • journal = {Computer Networks},
      • year = 2010,
      • volume = 54,
      • number = 10,
      • pages = {1607--1614},
      • month = jul
      • }
    •  Peter Larsson, Besma Smida, Toshiaki Koike-Akino and Vahid Tarokh, "Analysis of network coded HARQ for multiple unicast flows", Proc. The IEEE International Conference on Communications (ICC), June 2010.
      BibTeX
      • @Inproceedings{Koike2010ICC06,
      • author = {Larsson, Peter and Smida, Besma and Koike-Akino, Toshiaki and Tarokh, Vahid},
      • title = {Analysis of network coded HARQ for multiple unicast flows},
      • booktitle = {Proc. The IEEE International Conference on Communications (ICC)},
      • year = 2010,
      • month = jun
      • }
    •  Toshiaki Koike-Akino, "SAR analysis in dispersive tissues for in vivo UWB body area networks", Proc. The IEEE Global Telecommunications Conference (GLOBECOM), December 2009, pp. 1-6.
      BibTeX
      • @Inproceedings{Koike2009GLOBECOM12fdtd,
      • author = {Koike-Akino, Toshiaki},
      • title = {SAR analysis in dispersive tissues for in vivo UWB body area networks},
      • booktitle = {Proc. The IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2009,
      • pages = {1--6},
      • address = {Honolulu, Hawaii},
      • month = dec
      • }
    •  Toshiaki Koike-Akino, Petar Popovski and Vahid Tarokh, "Optimized precoding for adaptive modulation and network coding in bidirectional relaying", Proc. The IEEE Global Telecommunications Conference (GLOBECOM), December 2009, pp. 1-6.
      BibTeX
      • @Inproceedings{Koike2009GLOBECOM12nc,
      • author = {Koike-Akino, Toshiaki and Popovski, Petar and Tarokh, Vahid},
      • title = {Optimized precoding for adaptive modulation and network coding in bidirectional relaying},
      • booktitle = {Proc. The IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2009,
      • pages = {1--6},
      • address = {Honolulu, Hawaii},
      • month = dec
      • }
    •  Toshiaki Koike-Akino, Peter Larsson, Petar Popovski and Vahid Tarokh, "Non--linear network coding in two--way relaying discrete channels", Proc. The International Conference on Wireless Communications and Signal Processing (WCSP), December 2009.
      BibTeX
      • @Inproceedings{Koike2009WCSP12,
      • author = {Koike-Akino, Toshiaki and Larsson, Peter and Popovski, Petar and Tarokh, Vahid},
      • title = {Non--linear network coding in two--way relaying discrete channels},
      • booktitle = {Proc. The International Conference on Wireless Communications and Signal Processing (WCSP)},
      • year = 2009,
      • address = {Nanjing, China},
      • month = dec
      • }
    •  Toshiaki Koike-Akino, Natasha Devroye and Vahid Tarokh, "Frequency-domain bit-flipping equalizer for wideband MIMO channels", IEEE Transactions on Wireless Communications, Vol. 8, No. 10, pp. 4969-4973, October 2009.
      BibTeX
      • @Article{Koike2009TWC10,
      • author = {Koike-Akino, Toshiaki and Devroye, Natasha and Tarokh, Vahid},
      • title = {Frequency-domain bit-flipping equalizer for wideband MIMO channels},
      • journal = {IEEE Transactions on Wireless Communications},
      • year = 2009,
      • volume = 8,
      • number = 10,
      • pages = {4969--4973},
      • month = oct
      • }
    •  Toshiaki Koike, "Space-Time-Frequency Signal Processing for Spectrum-efficient Multiple-antenna Wireless Transmission Systems", September 2009, Kyoto University.
      BibTeX
      • @Phdthesis{Koike2009PhD09,
      • author = {Koike, Toshiaki},
      • title = {Space-Time-Frequency Signal Processing for Spectrum-efficient Multiple-antenna Wireless Transmission Systems},
      • school = {Kyoto University},
      • year = 2009,
      • month = sep
      • }
    •  Jesper H. Sørensen, Rasmus Krigslund, Petar Popovski, Toshiaki Koike Akino and Torben Larsen, "Physical layer network coding for FSK systems", IEEE Communications Letters, Vol. 13, No. 8, pp. 597-599, August 2009.
      BibTeX
      • @Article{Koike2009COMLET08,
      • author = {Sorensen, Jesper H. and Krigslund, Rasmus and Popovski, Petar and Koike Akino, Toshiaki and Larsen, Torben},
      • title = {Physical layer network coding for FSK systems},
      • journal = {IEEE Communications Letters},
      • year = 2009,
      • volume = 13,
      • number = 8,
      • pages = {597--599},
      • month = aug
      • }
    •  Toshiaki Koike-Akino, Petar Popovski and Vahid Tarokh, "Denoising strategy for convolutionally--coded bidirectional relaying", Proc. The IEEE International Conference on Communications (ICC), June 2009, pp. 1-5.
      BibTeX
      • @Inproceedings{Koike2009ICC06nc,
      • author = {Koike-Akino, Toshiaki and Popovski, Petar and Tarokh, Vahid},
      • title = {Denoising strategy for convolutionally--coded bidirectional relaying},
      • booktitle = {Proc. The IEEE International Conference on Communications (ICC)},
      • year = 2009,
      • pages = {1--5},
      • address = {Dresden, Germany},
      • month = jun
      • }
    •  Toshiaki Koike-Akino and Vahid Tarokh, "Sphere packing optimization and EXIT chart analysis for multi--dimensional QAM signaling", Proc. The IEEE International Conference on Communications (ICC), June 2009, pp. 1-5.
      BibTeX
      • @Inproceedings{Koike2009ICC06sp,
      • author = {Koike-Akino, Toshiaki and Tarokh, Vahid},
      • title = {Sphere packing optimization and EXIT chart analysis for multi--dimensional QAM signaling},
      • booktitle = {Proc. The IEEE International Conference on Communications (ICC)},
      • year = 2009,
      • pages = {1--5},
      • address = {Dresden, Germany},
      • month = jun
      • }
    •  Toshiaki Koike-Akino, Petar Popovski and Vahid Tarokh, "Optimized constellations for two--way wireless relaying with physical network coding", IEEE Journal on Selected Areas in Communications, Vol. 27, No. 5, pp. 773-787, June 2009.
      BibTeX
      • @Article{Koike2009JSAC06,
      • author = {Koike-Akino, Toshiaki and Popovski, Petar and Tarokh, Vahid},
      • title = {Optimized constellations for two--way wireless relaying with physical network coding},
      • journal = {IEEE Journal on Selected Areas in Communications},
      • year = 2009,
      • volume = 27,
      • number = 5,
      • pages = {773--787},
      • month = jun
      • }
    •  Toshiaki Koike-Akino, "Low-complexity systolic V-BLAST architecture", IEEE Transactions on Wireless Communications, Vol. 8, No. 5, pp. 2172-2176, May 2009.
      BibTeX
      • @Article{Koike2009TWC05,
      • author = {Koike-Akino, Toshiaki},
      • title = {Low-complexity systolic V-BLAST architecture},
      • journal = {IEEE Transactions on Wireless Communications},
      • year = 2009,
      • volume = 8,
      • number = 5,
      • pages = {2172--2176},
      • month = may
      • }
    •  Petar Popovski and Toshiaki Koike-Akino, "Coded Bidirectional Relaying in Wireless Networks" in New Directions in Wireless Communications, Tarokh, Vahid, Eds., pp. 291-316, Springer, 2009.
      BibTeX
      • @Incollection{Koike2009Springer,
      • author = {Popovski, Petar and Koike-Akino, Toshiaki},
      • title = {Coded Bidirectional Relaying in Wireless Networks},
      • booktitle = {New Directions in Wireless Communications},
      • year = 2009,
      • editor = {Tarokh, Vahid},
      • pages = {291--316},
      • publisher = {Springer}
      • }
    •  Toshiaki Koike-Akino, "Optimum-weighted RLS channel estimation for rapid fading MIMO channels", IEEE Transactions on Wireless Communications, Vol. 7, No. 11, pp. 4248-4260, November 2008.
      BibTeX
      • @Article{Koike2008TWC11,
      • author = {Koike-Akino, Toshiaki},
      • title = {Optimum-weighted RLS channel estimation for rapid fading MIMO channels},
      • journal = {IEEE Transactions on Wireless Communications},
      • year = 2008,
      • volume = 7,
      • number = 11,
      • pages = {4248--4260},
      • month = nov
      • }
    •  Toshiaki Koike-Akino, Petar Popovski and Vahid Tarokh, "Two--way relaying with network coding for frequency--selective fading channels", Proc. The 42nd Asilomar Conference on Signals, Systems, and Computers, October 2008, pp. 2221-2225.
      BibTeX
      • @Inproceedings{Koike2008Asilomar08,
      • author = {Koike-Akino, Toshiaki and Popovski, Petar and Tarokh, Vahid},
      • title = {Two--way relaying with network coding for frequency--selective fading channels},
      • booktitle = {Proc. The 42nd Asilomar Conference on Signals, Systems, and Computers},
      • year = 2008,
      • pages = {2221--2225},
      • address = {Pacific Grove, CA},
      • month = oct
      • }
    •  Toshiaki Koike-Akino, "Bit-flipping equalizer and ML search-space analysis for ultra-wideband MIMO channels", Proc. The IEEE Global Telecommunications Conference (GLOBECOM), Nov.--Dec. 2008, pp. 1-5.
      BibTeX
      • @Inproceedings{Koike2008GLOBECOM11ml,
      • author = {Koike-Akino, Toshiaki},
      • title = {Bit-flipping equalizer and ML search-space analysis for ultra-wideband MIMO channels},
      • booktitle = {Proc. The IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2008,
      • pages = {1--5},
      • address = {New Orleans, LA},
      • month = {Nov.--Dec.}
      • }
    •  Toshiaki Koike-Akino, Petar Popovski and Vahid Tarokh, "Denoising maps and constellations for wireless network coding in two--way relaying systems", Proc. The IEEE Global Telecommunications Conference (GLOBECOM), Nov.--Dec. 2008, pp. 1-5.
      BibTeX
      • @Inproceedings{Koike2008GLOBECOM11nc,
      • author = {Koike-Akino, Toshiaki and Popovski, Petar and Tarokh, Vahid},
      • title = {Denoising maps and constellations for wireless network coding in two--way relaying systems},
      • booktitle = {Proc. The IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2008,
      • pages = {1--5},
      • address = {New Orleans, LA},
      • month = {Nov.--Dec.}
      • }
    •  Toshiaki Koike-Akino, "Optimum-weighted RLS channel estimation for time-varying fast fading MIMO channels", Proc. The IEEE International Conference on Communications (ICC), June 2007, pp. 5015-5020.
      BibTeX
      • @Inproceedings{Koike2007ICC06,
      • author = {Koike-Akino, Toshiaki},
      • title = {Optimum-weighted RLS channel estimation for time-varying fast fading MIMO channels},
      • booktitle = {Proc. The IEEE International Conference on Communications (ICC)},
      • year = 2007,
      • pages = {5015--5020},
      • address = {Glasgow, Scotland},
      • month = jun
      • }
    •  Toshiaki Koike and Susumu Yoshida, "Iterative FDE for DD-based cooperative relaying with FD-STBC in quasi-synchronous networks", Proc. The 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), September 2006.
      BibTeX
      • @Inproceedings{Koike2006PIMRC09,
      • author = {Koike, Toshiaki and Yoshida, Susumu},
      • title = {Iterative FDE for DD-based cooperative relaying with FD-STBC in quasi-synchronous networks},
      • booktitle = {Proc. The 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)},
      • year = 2006,
      • address = {Helsinki, Finland},
      • month = sep
      • }
    •  Toshiaki Koike Akino, "Low-complexity architecture of MMSE/V-BLAST with recurrence formula for systolic weights generation", Proc. The 9th International Symposium on Wireless Personal Multimedia Communications (WPMC), September 2006.
      BibTeX
      • @Inproceedings{Koike2006WPMC09blast,
      • author = {Koike Akino, Toshiaki},
      • title = {Low-complexity architecture of MMSE/V-BLAST with recurrence formula for systolic weights generation},
      • booktitle = {Proc. The 9th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2006,
      • address = {San Diego},
      • month = sep
      • }
    •  Kohei Kiyoshima, Toshiaki Koike and Susumu Yoshida, "Algorithm-diversity of MIMO-MMSE with multiple channel estimation schemes for fast fading channels", Proc. The 9th International Symposium on Wireless Personal Multimedia Communications (WPMC), September 2006.
      BibTeX
      • @Inproceedings{Koike2006WPMC09mmse,
      • author = {Kiyoshima, Kohei and Koike, Toshiaki and Yoshida, Susumu},
      • title = {Algorithm-diversity of MIMO-MMSE with multiple channel estimation schemes for fast fading channels},
      • booktitle = {Proc. The 9th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2006,
      • address = {San Diego},
      • month = sep
      • }
    •  Toshiaki Koike, Yukinaga Seki, Hidekazu Murata, Susumu Yoshida and Kiyomichi Araki, "Prototype implementation of real-time ML detectors for spatial multiplexing transmission", IEICE Transactions on Communications, Vol. E89-B, No. 3, pp. 845-852, March 2006.
      BibTeX
      • @Article{Koike2006TCOM03fpga,
      • author = {Koike, Toshiaki and Seki, Yukinaga and Murata, Hidekazu and Yoshida, Susumu and Araki, Kiyomichi},
      • title = {Prototype implementation of real-time ML detectors for spatial multiplexing transmission},
      • journal = {IEICE Transactions on Communications},
      • year = 2006,
      • volume = {E89-B},
      • number = 3,
      • pages = {845--852},
      • month = mar
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Experimental evaluation of spatial interleaving in trellis-coded MIMO systems", IEICE Transactions on Communications, Vol. E89-B, No. 3, pp. 985-989, March 2006.
      BibTeX
      • @Article{Koike2006TCOM03tcc,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Experimental evaluation of spatial interleaving in trellis-coded MIMO systems},
      • journal = {IEICE Transactions on Communications},
      • year = 2006,
      • volume = {E89-B},
      • number = 3,
      • pages = {985--989},
      • month = mar
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Adaptive MLSE equalizer with per-survivor QR decomposition for trellis-coded MIMO transmission", Kluwer Journals on Wireless Personal Communications, Vol. 35, pp. 213-225, October 2005.
      BibTeX
      • @Article{Koike2005Kluwer10,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Adaptive MLSE equalizer with per-survivor QR decomposition for trellis-coded MIMO transmission},
      • journal = {Kluwer Journals on Wireless Personal Communications},
      • year = 2005,
      • volume = 35,
      • pages = {213--225},
      • month = oct
      • }
    •  Toshiaki Koike, Yukinaga Seki, Hidekazu Murata, Susumu Yoshida and Kiyomichi Araki, "FPGA prototyping of MIMO detector for over-1Gbps wireless transmissions", Proc. Union Radio-Scientifique Internationale General Assembly (URSI-GA), October 2005.
      BibTeX
      • @Inproceedings{Koike2005URSI-GA10,
      • author = {Koike, Toshiaki and Seki, Yukinaga and Murata, Hidekazu and Yoshida, Susumu and Araki, Kiyomichi},
      • title = {FPGA prototyping of MIMO detector for over-1Gbps wireless transmissions},
      • booktitle = {Proc. Union Radio-Scientifique Internationale General Assembly (URSI-GA)},
      • year = 2005,
      • address = {New Delhi, India},
      • month = oct
      • }
    •  Toshiaki Koike, Masakazu Tanaka and Susumu Yoshida, "Capacity improvement of multihop inter-vehicle communication networks by STBC cooperative relaying", IEICE Transactions on Communications, Vol. E88-B, No. 9, pp. 3546-3553, September 2005.
      BibTeX
      • @Article{Koike2005TCOM09,
      • author = {Koike, Toshiaki and Tanaka, Masakazu and Yoshida, Susumu},
      • title = {Capacity improvement of multihop inter-vehicle communication networks by STBC cooperative relaying},
      • journal = {IEICE Transactions on Communications},
      • year = 2005,
      • volume = {E88-B},
      • number = 9,
      • pages = {3546--3553},
      • month = sep
      • }
    •  Toshiaki Koike and Susumu Yoshida, "Approximated ML detector using Hopfield neural network in MIMO spatial multiplexing systems", Proc. The 8th International Symposium on Wireless Personal Multimedia Communications (WPMC), September 2005.
      BibTeX
      • @Inproceedings{Koike2005WPMC09,
      • author = {Koike, Toshiaki and Yoshida, Susumu},
      • title = {Approximated ML detector using Hopfield neural network in MIMO spatial multiplexing systems},
      • booktitle = {Proc. The 8th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2005,
      • address = {Aalborg, Denmark},
      • month = sep
      • }
    •  Toshiaki Koike, Masakazu Tanaka and Susumu Yoshida, "System-level evaluation of STC cooperative relaying scheme in multihop IVC networks", Proc. The 2nd IEEE Asia Pacific Wireless Communications Symposium (APWCS), August 2005.
      BibTeX
      • @Inproceedings{Koike2005APWCS08,
      • author = {Koike, Toshiaki and Tanaka, Masakazu and Yoshida, Susumu},
      • title = {System-level evaluation of STC cooperative relaying scheme in multihop IVC networks},
      • booktitle = {Proc. The 2nd IEEE Asia Pacific Wireless Communications Symposium (APWCS)},
      • year = 2005,
      • address = {Sapporo, Japan},
      • month = aug
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Genetic design method for near-optimal training sequences in multiple antenna systems", IEICE Transactions on Communications, Vol. E88-B, No. 8, pp. 3488-3492, August 2005.
      BibTeX
      • @Article{Koike2005TCOM08,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Genetic design method for near-optimal training sequences in multiple antenna systems},
      • journal = {IEICE Transactions on Communications},
      • year = 2005,
      • volume = {E88-B},
      • number = 8,
      • pages = {3488--3492},
      • month = aug
      • }
    •  Yasumori Nouda, Toshiaki Koike and Susumu Yoshida, "Iterative MLD equalizer preceded by MIMO-FDE for wideband spatial multiplexing systems", Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring), May--June 2005, vol. 1, pp. 533-537.
      BibTeX
      • @Inproceedings{Koike2005VTC05fde,
      • author = {Nouda, Yasumori and Koike, Toshiaki and Yoshida, Susumu},
      • title = {Iterative MLD equalizer preceded by MIMO-FDE for wideband spatial multiplexing systems},
      • booktitle = {Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring)},
      • year = 2005,
      • volume = 1,
      • pages = {533--537},
      • address = {Stockholm, Sweden},
      • month = {May--June}
      • }
    •  Toshiaki Koike, Yukinaga Seki, Hidekazu Murata, Susumu Yoshida and Kiyomichi Araki, "FPGA implementation of 1Gbps real-time 4x4 MIMO-MLD", Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring), May--June 2005, vol. 2, pp. 1110-1114.
      BibTeX
      • @Inproceedings{Koike2005VTC05fpga,
      • author = {Koike, Toshiaki and Seki, Yukinaga and Murata, Hidekazu and Yoshida, Susumu and Araki, Kiyomichi},
      • title = {FPGA implementation of 1Gbps real-time 4x4 MIMO-MLD},
      • booktitle = {Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring)},
      • year = 2005,
      • volume = 2,
      • pages = {1110--1114},
      • address = {Stockholm, Sweden},
      • month = {May--June}
      • }
    •  Toshiaki Koike, Daisuke Nishikawa and Susumu Yoshida, "Metric-segmented low-complexity ML detection for spectrum-efficient multiple-antenna systems", Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring), May--June 2005, vol. 3, pp. 1642-1646.
      BibTeX
      • @Inproceedings{Koike2005VTC05ml,
      • author = {Koike, Toshiaki and Nishikawa, Daisuke and Yoshida, Susumu},
      • title = {Metric-segmented low-complexity ML detection for spectrum-efficient multiple-antenna systems},
      • booktitle = {Proc. The 61st IEEE Vehicular Technology Conference (VTC-Spring)},
      • year = 2005,
      • volume = 3,
      • pages = {1642--1646},
      • address = {Stockholm, Sweden},
      • month = {May--June}
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Frequency-domain SC/MMSE iterative equalizer with MF approximation in LDPC-coded MIMO transmissions", Proc. The 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), September 2004, vol. 2, pp. 1414-1418.
      BibTeX
      • @Inproceedings{Koike2004PIMRC09,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Frequency-domain SC/MMSE iterative equalizer with MF approximation in LDPC-coded MIMO transmissions},
      • booktitle = {Proc. The 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)},
      • year = 2004,
      • volume = 2,
      • pages = {1414--1418},
      • address = {Barcelona, Spain},
      • month = sep
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "MLSE adaptive equalizer with per-survivor QR decomposition for trellis-coded MIMO transmissions", Proc. The 7th International Symposium on Wireless Personal Multimedia Communications (WPMC), September 2004.
      BibTeX
      • @Inproceedings{Koike2004WPMC09,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {MLSE adaptive equalizer with per-survivor QR decomposition for trellis-coded MIMO transmissions},
      • booktitle = {Proc. The 7th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2004,
      • address = {Abano Terme, Itary},
      • month = sep
      • }
    •  Toshiaki Koike and Susumu Yoshida, "Space-time trellis-coded ternary PSK for mobile communications", IEE Electronics Letters, Vol. 40, No. 16, pp. 1011-1012, August 2004.
      BibTeX
      • @Article{Koike2004ELET08,
      • author = {Koike, Toshiaki and Yoshida, Susumu},
      • title = {Space-time trellis-coded ternary PSK for mobile communications},
      • journal = {IEE Electronics Letters},
      • year = 2004,
      • volume = 40,
      • number = 16,
      • pages = {1011--1012},
      • month = aug
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Hybrid ARQ scheme suitable for coded MIMO transmission", Proc. The IEEE International Conference on Communications (ICC), June 2004, vol. 5, pp. 2919-2923.
      BibTeX
      • @Inproceedings{Koike2004ICC06,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Hybrid ARQ scheme suitable for coded MIMO transmission},
      • booktitle = {Proc. The IEEE International Conference on Communications (ICC)},
      • year = 2004,
      • volume = 5,
      • pages = {2919--2923},
      • address = {Paris, France},
      • month = jun
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Evaluation of HARQ scheme with antenna permutation and TCM reassignment for space-time transmission in slow Nakagami-Rice fading MIMO channel", IEICE Transactions on Communications, Vol. E87-B, No. 6, pp. 1487-1494, June 2004.
      BibTeX
      • @Article{Koike2004TCOM06,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Evaluation of HARQ scheme with antenna permutation and TCM reassignment for space-time transmission in slow Nakagami-Rice fading MIMO channel},
      • journal = {IEICE Transactions on Communications},
      • year = 2004,
      • volume = {E87-B},
      • number = 6,
      • pages = {1487--1494},
      • month = jun
      • }
    •  Toshiaki Koike and Susumu Yoshida, "Genetic designing of near-optimal training sequences for spatial multiplexing transmissions", Proc. The Joint Conference of the 10th Asia-Pacific Conference on Communications, and the 5th International Symposium on Multi-Dimensional Mobile Communications (APCC/MDMC), Aug.--Sep. 2004, vol. 1, pp. 474-478.
      BibTeX
      • @Inproceedings{Koike2004APCC-MDMC08,
      • author = {Koike, Toshiaki and Yoshida, Susumu},
      • title = {Genetic designing of near-optimal training sequences for spatial multiplexing transmissions},
      • booktitle = {Proc. The Joint Conference of the 10th Asia-Pacific Conference on Communications, and the 5th International Symposium on Multi-Dimensional Mobile Communications (APCC/MDMC)},
      • year = 2004,
      • volume = 1,
      • pages = {474--478},
      • address = {Beijing, China},
      • month = {Aug.--Sep.}
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Space-time coded ternary phase shift keying", Proc. IEEE Joint Conference of the Fourth International Conference on Information, Communications and Signal Processing, and Fourth Pacific Rim Conference on Multimedia (ICICS-PCM), December 2003, vol. 2, pp. 864-868.
      BibTeX
      • @Inproceedings{Koike2003ICICS-PCM12,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Space-time coded ternary phase shift keying},
      • booktitle = {Proc. IEEE Joint Conference of the Fourth International Conference on Information, Communications and Signal Processing, and Fourth Pacific Rim Conference on Multimedia (ICICS-PCM)},
      • year = 2003,
      • volume = 2,
      • pages = {864--868},
      • address = {Singapore},
      • month = dec
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Laboratory experiments of coded space-time transmission with spatial interleaving for wireless MIMO channels", Proc. The 6th International Symposium on Wireless Personal Multimedia Communications (WPMC), October 2003.
      BibTeX
      • @Inproceedings{Koike2003WPMC10,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Laboratory experiments of coded space-time transmission with spatial interleaving for wireless MIMO channels},
      • booktitle = {Proc. The 6th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2003,
      • address = {Yokosuka, Japan},
      • month = oct
      • }
    •  Toshiaki Koike, Hidekazu Murata and Susumu Yoshida, "Spatial interleaving for vector Viterbi equalizer with super-trellis decoding in trellis-coded space-time transmission", Proc. The 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), September 2003, vol. 2, pp. 1302-1306.
      BibTeX
      • @Inproceedings{Koike2003PIMRC09,
      • author = {Koike, Toshiaki and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Spatial interleaving for vector Viterbi equalizer with super-trellis decoding in trellis-coded space-time transmission},
      • booktitle = {Proc. The 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)},
      • year = 2003,
      • volume = 2,
      • pages = {1302--1306},
      • address = {Beijing, China},
      • month = sep
      • }
    •  Toshiaki Koike, Koutarou Shiizaki, Hidekazu Murata and Susumu Yoshida, "Experimental study of multi-user detector with trellis-coding for microcellular radio", Proc. The 5th International Symposium on Wireless Personal Multimedia Communications (WPMC), October 2002, vol. 3, pp. 1252-1256.
      BibTeX
      • @Inproceedings{Koike2002WPMC10,
      • author = {Koike, Toshiaki and Shiizaki, Koutarou and Murata, Hidekazu and Yoshida, Susumu},
      • title = {Experimental study of multi-user detector with trellis-coding for microcellular radio},
      • booktitle = {Proc. The 5th International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2002,
      • volume = 3,
      • pages = {1252--1256},
      • address = {Honolulu, Hawaii},
      • month = oct
      • }

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      Issue Date: Jan 21, 2020
    • Title: "Distribution Matcher"
      Inventors: Millar, David; Fehenberger, Tobias; Koike-Akino, Toshiaki; Parsons, Kieran; Kojima, Keisuke
      Patent No.: 10,516,503
      Issue Date: Dec 24, 2019
    • Title: "Method and System for Distributed Coding of Images"
      Inventors: Boufounos, Petros T.; Goukhshtein, Maxim; Koike-Akino, Toshiaki; Draper, Stark C.
      Patent No.: 10,455,250
      Issue Date: Oct 22, 2019
    • Title: "Localization using Millimeter Wave Communication Signals"
      Inventors: Pajovic, Milutin; Koike-Akino, Toshiaki; Orlik, Philip V.
      Patent No.: 10,425,910
      Issue Date: Sep 24, 2019
    • Title: "Optical Signal Transmitter and Optical Signal Encoder Using Constant Modulus Formats, and Method for Generating Modulation Codes"
      Inventors: Kojima, Keisuke; Yoshida, Tsuyoshi; Koike-Akino, Toshiaki; Millar, David; Parsons, Kieran
      Patent No.: 10,320,486
      Issue Date: Jun 11, 2019
    • Title: "Irregular Polar Code Encoding"
      Inventors: Koike-Akino, Toshiaki; Wang, Ye; Draper, Stark C.
      Patent No.: 10,313,056
      Issue Date: Jun 4, 2019
    • Title: "Soft-Output Decoding of Codewords Encoded with Polar Code"
      Inventors: Wang, Ye; Koike-Akino, Toshiaki; Draper, Stark C.
      Patent No.: 10,312,946
      Issue Date: Jun 4, 2019
    • Title: "Compact Photonic Devices"
      Inventors: Kojima, Keisuke; Teng, Min; Koike-Akino, Toshiaki; Wang, Bingnan
      Patent No.: 10,234,627
      Issue Date: Mar 19, 2019
    • Title: "See-Through Sensing for Image Reconstruction of Structure of Target Object"
      Inventors: Wang, Pu; Koike-Akino, Toshiaki; Fu, Haoyu; Orlik, Philip V.
      Patent No.: 10,217,252
      Issue Date: Feb 26, 2019
    • Title: "Photonic Integrated Circuit"
      Inventors: Kojima, Keisuke; Nishikawa, Satoshi; Koike-Akino, Toshiaki; Wang, Bingnan; Yagyu, Eiji
      Patent No.: 10,120,132
      Issue Date: Nov 6, 2018
    • Title: "Partition Based Distribution Matcher for Probabilistic Constellation Shaping"
      Inventors: Millar, David; Fehenberger, Tobias; Koike-Akino, Toshiaki; Kojima, Keisuke; Parsons, Kieran
      Patent No.: 10,069,519
      Issue Date: Sep 4, 2018
    • Title: "System and Method for Spatial Beamforming Modulation"
      Inventors: Kim, Kyeong-Jin; Ding, Yacong; Koike-Akino, Toshiaki; Pajovic, Milutin; Orlik, Philip V.
      Patent No.: 9,948,377
      Issue Date: Apr 17, 2018
    • Title: "Frequency Domain Equalizer for Optical Communications"
      Inventors: Millar, David; Paskov, Milen; Koike-Akino, Toshiaki; Parsons, Kieran; Kojima, Keisuke
      Patent No.: 9,917,712
      Issue Date: Mar 13, 2018
    • Title: "Methods for Compensation of Cross-Polarization Modulation (XPolM) Impairments in Coherent Optical Communications"
      Inventors: Pajovic, Milutin; Parsons, Kieran; Millar, David; Koike-Akino, Toshiaki; Kojima, Keisuke
      Patent No.: 9,906,308
      Issue Date: Feb 27, 2018
    • Title: "System and Method of Belief Propagation Decoding"
      Inventors: Koike-Akino, Toshiaki; Millar, David
      Patent No.: 9,806,743
      Issue Date: Oct 31, 2017
    • Title: "Optical Signal Transmitter and Optical Communication System Using Constant Modulus Formats, and Method for Generating Modulation Codes"
      Inventors: Kojima, Keisuke; Yoshida, Tsuyoshi; Koike-Akino, Toshiaki; Millar, David; Parsons, Kieran
      Patent No.: 9,806,739
      Issue Date: Oct 31, 2017
    • Title: "System and Method for Linearizing Power Amplifiers"
      Inventors: Koike-Akino, Toshiaki; Zhu, Qiuyao; Ma, Rui; Teo, Koon Hoo
      Patent No.: 9,749,163
      Issue Date: Aug 29, 2017
    • Title: "Fast Log-Likelihood Ratio (LLR) Computation for Decoding High-Order and High-Dimensional Modulation Schemes"
      Inventors: Millar, David; Koike-Akino, Toshiaki; Kojima, Keisuke; Parsons, Kieran
      Patent No.: 9,749,089
      Issue Date: Aug 29, 2017
    • Title: "Method and System for Reliable Data Communications with Adaptive Multi-Dimensional Modulations for Variable-Iteration Decoding"
      Inventors: Koike-Akino, Toshiaki
      Patent No.: 9,722,633
      Issue Date: Aug 1, 2017
    • Title: "System and Method for Wireless Communications over Fading Channels"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.; Kim, Kyeong-Jin
      Patent No.: 9,716,536
      Issue Date: Jul 25, 2017
    • Title: "Method for Generating Constant Modulus Multi-Dimensional Modulations for Coherent Optical Communications"
      Inventors: Kojima, Keisuke; Millar, David; Koike-Akino, Toshiaki; Parsons, Kieran
      Patent No.: 9,621,275
      Issue Date: Apr 11, 2017
    • Title: "Quaternary Block-Coded High-Dimensional Modulation for Coherent Optical Communications"
      Inventors: Millar, David; Koike-Akino, Toshiaki
      Patent No.: 9,584,259
      Issue Date: Feb 28, 2017
    • Title: "Adaptive Error Correction Code for Optical Super-Channels"
      Inventors: Kojima, Keisuke; Parsons, Kieran; Millar, David; Koike-Akino, Toshiaki
      Patent No.: 9,584,256
      Issue Date: Feb 28, 2017
    • Title: "Pilot-Aided Coherent Receiver for Optical Communications"
      Inventors: Millar, David; Koike-Akino, Toshiaki; Pajovic, Milutin
      Patent No.: 9,559,786
      Issue Date: Jan 31, 2017
    • Title: "System and Method for Manipulating Polarizations of Optical Signal"
      Inventors: Kojima, Keisuke; Felicetti, Manuela; Koike-Akino, Toshiaki; Wang, Bingnan; Nishikawa, Satoshi; Yagyu, Eiji
      Patent No.: 9,557,485
      Issue Date: Jan 31, 2017
    • Title: "System and Method for Decoding Block of Data Received Over Communication Channel"
      Inventors: Kim, Kyeong-Jin; Orlik, Philip V.; Koike-Akino, Toshiaki
      Patent No.: 9,525,514
      Issue Date: Dec 20, 2016
    • Title: "System and Method for Recovering Carrier Phase in Optical Communications"
      Inventors: Koike-Akino, Toshiaki; Kojima, Keisuke; Millar, David
      Patent No.: 9,473,250
      Issue Date: Oct 18, 2016
    • Title: "RECEIVER, TRANSMITTER, AND COMMUNICATION METHOD"
      Inventors: Koike-Akino, Toshiaki; Matsumoto, Wataru; Sugihara, Kenya; Miyata, Yoshikuni; Sugihara, Takashi; Yoshida, Tsuyoshi
      Patent No.: 9,455,822
      Issue Date: Sep 27, 2016
    • Title: "Inter-Channel Interference Management for Optical Super-Channels"
      Inventors: Koike-Akino, Toshiaki; Kojima, Keisuke; Millar, David; Parsons, Kieran
      Patent No.: 9,432,124
      Issue Date: Aug 30, 2016
    • Title: "System and Method for Measuring Linewidth of Optical Signal"
      Inventors: Kojima, Keisuke; Koike-Akino, Toshiaki; Horiguchi, Yuichiro
      Patent No.: 9,369,204
      Issue Date: Jun 14, 2016
    • Title: "System and Method for Linearizing Power Amplifiers"
      Inventors: Koike-Akino, Toshiaki; Zhu, Qiuyao; Ma, Rui; Teo, Koon Hoo
      Patent No.: 9,270,504
      Issue Date: Feb 23, 2016
    • Title: "System and Method for Communicating Data Symbols via Wireless Doubly-Selective Channels"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.; Kim, Kyeong-Jin
      Patent No.: 9,264,118
      Issue Date: Feb 16, 2016
    • Title: "Method and System for Communicating Multimedia Using Reconfigurable Rateless Codes and Decoding In-Process Status Feedback"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.; Soerensen, Jesper H.
      Patent No.: 9,215,457
      Issue Date: Dec 15, 2015
    • Title: "Method and Apparatus for Detecting Symbols Received Wirelessly using Probabilistic Data Association with Uncertainty"
      Inventors: Orlik, Philip V.; Pajovic, Milutin; Kim, Kyeong-Jin; Koike-Akino, Toshiaki
      Patent No.: 9,184,876
      Issue Date: Nov 10, 2015
    • Title: "Multi-Mode Interference Device"
      Inventors: Kojima, Keisuke; Ozbayat, Selman; Koike-Akino, Toshiaki; Wang, Bingnan; Nishikawa, Satoshi; Yagyu, Eiji
      Patent No.: 9,116,298
      Issue Date: Aug 25, 2015
    • Title: "Method and System for Modulating Optical Signals as High-Dimensional Lattice Constellation Points to Increase Tolerance to Noise"
      Inventors: Koike-Akino, Toshiaki; Knyazev, Andrew ; Millar, David
      Patent No.: 9,112,653
      Issue Date: Aug 18, 2015
    • Title: "Multi-Mode Interference Device"
      Inventors: Koike-Akino, Toshiaki; Kojima, Keisuke; Wang, Bingnan; Nishikawa, Satoshi; Yagyu, Eiji
      Patent No.: 9,097,852
      Issue Date: Aug 4, 2015
    • Title: "Non-Coherent Transmission and Equalization in Doubly-Selective MIMO Channels"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.
      Patent No.: 9,088,447
      Issue Date: Jul 21, 2015
    • Title: "Adaptively Coding and Modulating Signals Transmitted Via Nonlinear Channels"
      Inventors: Koike-Akino, Toshiaki; Parsons, Kieran; Duan, Chunjie; Kojima, Keisuke
      Patent No.: 9,077,508
      Issue Date: Jul 7, 2015
    • Title: "Compound Optical Combiner"
      Inventors: Kojima, Keisuke; Wang, Bingnan; Koike-Akino, Toshiaki; Nishikawa, Satoshi; Yagyu, Eiji
      Patent No.: 9,052,461
      Issue Date: Jun 9, 2015
    • Title: "Multi-Mode Interference Manipulator"
      Inventors: Kojima, Keisuke; Wang, Bingnan; Koike-Akino, Toshiaki; Yuan, Wangqing; Nishikawa, Satoshi
      Patent No.: 8,942,517
      Issue Date: Jan 27, 2015
    • Title: "Reputation-Based Routing and Error-Correction Coding in Ad Hoc Networks"
      Inventors: Koike-Akino, Toshiaki; Duan, Chunjie
      Patent No.: 8,942,120
      Issue Date: Jan 27, 2015
    • Title: "Non-Coherent Space-Time Trellis-Coded Modulations for Network-Coded Wireless Relay Communications"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.
      Patent No.: 8,553,792
      Issue Date: Oct 8, 2013
    • Title: "Method for Generating Private Keys in Wireless Networks"
      Inventors: Liu, Wei; Duan, Chunjie; Koike-Akino, Toshiaki; Annavajjala, Ramesh; Wang, Yige
      Patent No.: 8,483,387
      Issue Date: Jul 9, 2013
    • Title: "Adaptive Cross-Polarization Modulation Cancellers for Coherent Optical Communication System"
      Inventors: Koike-Akino, Toshiaki; Parsons, Kieran; Liu, Cheng
      Patent No.: 8,472,809
      Issue Date: Jun 25, 2013
    • Title: "Method for Reducing Interference in Multi-Cell Multi-User Wireless Networks"
      Inventors: Koike-Akino, Toshiaki; Pun, Man On; Gou, Tiangao
      Patent No.: 8,472,550
      Issue Date: Jun 25, 2013
    • Title: "Sparse Channel Estimation Using Order Extension for Frequency and Time Selective MIMO Wireless Communication Networks"
      Inventors: Koike-Akino, Toshiaki
      Patent No.: 8,451,930
      Issue Date: May 28, 2013
    • Title: "Cross-Free High-Dimensional Constellations for Dual-Polarized Non-Linear Fiber-Optic Communications"
      Inventors: Koike-Akino, Toshiaki; Orlik, Philip V.; Parsons, Kieran
      Patent No.: 8,433,205
      Issue Date: Apr 30, 2013
    See All Patents for MERL