- Date: June 5, 2017
Where: Honolulu, HI
MERL Contact: Philip V. Orlik
Research Areas: Communications, Electronic and Photonic Devices, Signal Processing
Brief - MERL researcher Dr. Rui Ma, is organizing a Workshop in collaboration with Dr. SungWon Chung of the University of Southern California (USC) on advanced digital transmitters. This workshop overviews recent advances in digital-intensive wireless transmitter R&D for both base-stations and mobile devices. The focus will be on the digital signal processing techniques and related digital-intensive transmitter circuits and architectures for advanced modulation, linearization, spur cancellation, high efficiency encoding, and parallel processing. This workshop takes place on Monday, June 5th 2017 at International Microwave Week, in Honolulu, HI. In total, 8 technical presentations from world leading research groups will be given.
Dr. Ma will present a talk titled, "Advanced Power Encoding and Non-Contiguous Multi-Band Digital Transmitter Architectures".
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- Date: May 21, 2017 - May 25, 2017
Where: IEEE International Conference on Communications (ICC)
MERL Contacts: Toshiaki Koike-Akino; Philip V. Orlik; Pu (Perry) Wang; Ye Wang
Research Areas: Communications, Signal Processing
Brief - Five papers from the Wireless Comms team will be presented at ICC2017 to be held in Paris from 21-25 May 2017. The papers relate to channel estimation and adaptive transmission for mmWave, noncoherent MIMO, error correction coding, and video transmission.
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- Date: March 20, 2016 - March 25, 2016
Where: Shanghai, China
MERL Contacts: Petros T. Boufounos; Chiori Hori; Jonathan Le Roux; Dehong Liu; Hassan Mansour; Philip V. Orlik; Anthony Vetro
Research Areas: Computational Sensing, Digital Video, Speech & Audio, Communications, Signal Processing
Brief - MERL researchers have presented 12 papers at the recent IEEE International Conference on Acoustics, Speech & Signal Processing (ICASSP), which was held in Shanghai, China from March 20-25, 2016. ICASSP is the flagship conference of the IEEE Signal Processing Society, and the world's largest and most comprehensive technical conference focused on the research advances and latest technological development in signal and information processing, with more than 1200 papers presented and over 2000 participants.
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- Date: March 1, 2016
Where: Tokyo, Japan
MERL Contact: Philip V. Orlik
Research Areas: Communications, Signal Processing
Brief - MERL EC researchers assisted in the development of an indoor positioning system with WiFi and acoustic based ranging technologies. Please see the link below for the full Mitsubishi Electric press release.
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- Date: June 9, 2013
Where: IEEE International Conference on Communications (ICC)
MERL Contact: Philip V. Orlik Brief - The papers "Cognitive Multihop Networks in Spectrum Sharing Environment with Multiple Licensed Users" by Kim, K.J., Duong, T.Q., Tsiftsis, T.A. and Bao, V.N.Q., "Opportunistic Relaying for Cognitive Network with Multiple Primary Users over Nakagami-m Fading" by Duong, T.Q., Kim, K.J., Zepernick, H-J and Tellambura, C. and "On Probabilistic Data Association for Achieving Near-Exponential Diversity over Fading Channels" by Yellepeddi, A., Kim, K.J., Duan, C. and Orlik, P. were presented at the IEEE International Conference on Communications (ICC).
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- Date: April 7, 2013
Where: IEEE Wireless Communications and Networking Conference (WCNC)
MERL Contacts: Philip V. Orlik; Jianlin Guo; Kieran Parsons
Research Area: Communications
Brief - The paper "Load Balanced Routing for Low Power and Lossy Networks" by Liu, X., Guo, J., Bhatti, G., Orlik, P. and Parsons, K. was presented at the IEEE Wireless Communications and Networking Conference (WCNC).
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- Date: October 29, 2012
Where: IEEE Military Communications Conference (MILCOM)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino
Research Area: Communications
Brief - The paper "Robust Receiver Algorithms to Mitigate Partial-Band and Partial-Time Interference in LDPC-coded OFDM Systems" by Li, L., Annavajjala, R., Koike-Akino, T. and Orlik, P. was presented at the IEEE Military Communications Conference (MILCOM).
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- Date: September 3, 2012
Where: IEEE Vehicular Technology Conference (VTC)
MERL Contact: Philip V. Orlik
Research Area: Communications
Brief - The paper "Location Based Data Delivery Schedulers for Vehicle Telematics Applications" by Xu, K., Orlik, P., Nagai, Y. and Saito, M. was presented at the IEEE Vehicular Technology Conference (VTC).
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- Date: August 19, 2012
Where: International Conference on Sensor Technologies and Applications (SENSORCOMM)
MERL Contacts: Philip V. Orlik; Jianlin Guo
Research Area: Communications
Brief - The paper "Loop-Free Routing in Low-Power and Lossy Networks" by Guo, J., Han, C., Orlik, P., Zhang, J. and Ishibashi, K. was presented at the International Conference on Sensor Technologies and Applications (SENSORCOMM).
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- Date: July 1, 2012
Where: IEEE International Symposium on Information Theory (ISIT)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino Brief - The papers "Rateless Feedback Codes" by Sorensen, J.H., Koike-Akino, T. and Orlik, P. and "Ripple Design of LT Codes for AWGN Channel" by Sorensen, J.H., Koike-Akino, T., Orlik, P., Ostergaard, J. and Popovski, P. were presented at the IEEE International Symposium on Information Theory (ISIT).
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- Date: June 10, 2012
Where: IEEE International Conference on Communications (ICC)
MERL Contact: Philip V. Orlik
Research Area: Signal Processing
Brief - The paper "Non-coherent ToA Estimation for UWB Multipath Channels using Max-eigenvalue Detection" by Shi, W., Annavajjala, R., Orlik, P.V., Molisch, A.F., Ochiari, M. and Taira, A. was presented at the IEEE International Conference on Communications (ICC).
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- Date: May 6, 2012
Where: IEEE Vehicular Technology Conference (VTC)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino
Research Area: Communications
Brief - The paper "Improved and Opportunistic Interference Alignment Schemes for Multi-Cell Interference Channels" by Gou, T., Koike-Akino, T. and Orlik, P. was presented at the IEEE Vehicular Technology Conference (VTC).
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- Date: June 8, 2011
Where: IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)
MERL Contact: Philip V. Orlik
Research Area: Communications
Brief - The paper "Resource Block Embedding: Towards High Throughput Broadband Multimedia Wireless Networks" by Annavajjala, R., Orlik, P.V. and Zhang, J. was presented at the IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB).
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- Date: June 5, 2011
Where: IEEE International Conference on Communications (ICC)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino Brief - The papers "Reduced-Rate OFDM Transmission with Statistics-based ICI Mitigation" by Ma, J., Orlik, P., Zhang, J. and Li, G.Y., "Super-Resolution Blind Channel Modeling" by Pun, M.-O., Molisch, A.F., Orlik, P. and Okazaki, A., "Network-Coded Interference Alignment in K-Pair Bidirectional Relaying Channels" by Koike-Akino, T., Pun, M.-O. and Orlik, P., "Non-Coherent Grassmann TCM Design for Physical-Layer Network Coding in Bidirectional MIMO Relaying Systems" by Koike-Akino, T. and Orlik, P. and "Order-Extended Sparse RLS Algorithm for Doubly-Selective MIMO Channel Estimation" by Koike-Akino, T., Molisch, A.F., Annavajjala, R., Orlik, P. and Pun, M.-O. were presented at the IEEE International Conference on Communications (ICC).
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- Date & Time: Thursday, June 2, 2011; 12:00 PM
Speaker: Ramesh Annavajjala, MERL
MERL Host: Philip V. Orlik Abstract - For orthogonal frequency-division multiplexing (OFDM) based wireless systems, a resource block (RB) in a two-dimensional time-frequency plane is defined as a data block spanned by a number of consecutive OFDM symbols over a number of consecutive subcarriers. Traditionally, RBs contain modulation symbols for data transmission and pilot symbols for channel estimation.
In this talk, I present a novel approach to RB designs for OFDM systems with multiple antennas at the transmitter and the receiver (i.e., MIMO-OFDM). The proposed approach, termed resource block embedding, does not require explicit pilot symbols to estimate the channel at the receiver, and hence reduces the channel estimation overhead significantly. I describe, in detail, the encoding and decoding algorithms for our proposed embedded resource blocks (ERB) for single-user single-antenna transmission, two transmitter antenna Alamouti code, four transmitter antenna stacked Alamouti code, and multi-stream spatial multiplexing. I also outline construction of ERBs for multi-user MIMO systems.
This is a joint work with Phil Orlik and Jin Zhang.
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- Date: April 21, 2011
Where: IEEE Transactions on Wireless Communications
MERL Contact: Philip V. Orlik
Research Area: Communications
Brief - The article "Pilot Matrix Design for Estimating Cascaded Channels in Two-Hop MIMO Amplify-and-Forward Relay Systems" by Ma, J., Orlik, P., Zhang, J. and Li, G.Y. was published in IEEE Transactions on Wireless Communications.
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- Date: March 17, 2011
Where: IEEE Transactions on Communications
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino
Research Area: Communications
Brief - The article "Capacity, MSE and Secrecy Analysis of Linear Block Precoding for Distributed Antenna Systems in Multi-User Frequency-Selective Fading Channels" by Koike-Akino, T., Molisch, A.F., Duan, C., Tao, Z. and Orlik, P. was published in IEEE Transactions on Communications.
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- Date: February 6, 2011
Where: IEEE Information Theory and Applications Workshop (ITA)
MERL Contact: Philip V. Orlik Brief - The papers "An Information-Theoretic Analysis of Revocability and Reusability in Secure Biometrics" by Wang, Y., Rane, S., Draper, S.C. and Ishwar, P. and "Achieving Near-Exponential Diversity on Uncoded Low-Dimensional MIMO, Multi-User and Multi-Carrier Systems without Transmitter CSI" by Annavajjala, R. and Orlik, P.V. were presented at the IEEE Information Theory and Applications Workshop (ITA).
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- Date: December 6, 2010
Where: IEEE Global Telecommunications Conference (GLOBECOM)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino Brief - The papers "Multi-hop Localization Using Mobility (MLM) in Mixed LOS/NLOS Environments" by Takenaka, T., Sahinoglu, Z., Bhatti, G.M., Zhang, J., Mineno, H. and Mizuno, T., "Two-Step Low-Complexity Space-Time Adaptive Processing (STAP)" by Pun, M.-O., Sahinoglu, Z., Shah, S., Hara, Y. and Wang, P. and "High-Order Super-Block GLRT for Non-Coherent Grassmann Codes in MIMO-OFDM Systems" by Koike-Akino, T. and Orlik, P. were presented at the IEEE Global Telecommunications Conference (GLOBECOM).
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- Date: October 25, 2010
Where: World Congress and Exhibition on Intelligent Transport Systems and Services (ITS)
MERL Contacts: Philip V. Orlik; Jianlin Guo Brief - The papers "Location Aware Fast Handover Between WiMax and WiFi Networks" by Guo, J., Tsuboi, T. and Zhang, J., "Effect of Transmission Parameters on Efficiency and Reliability of V2V Networks" by Yim, R., Ye, F., Roy, S. and Orlik, P., "Safety Message Transmission in Vehicular Communication Networks" by Guo, J. and Zhang, J. and "Digital Lane Marking for Geo-Information Dissemination" by Yim, R., Saito, M. and Zhang, J. were presented at the World Congress and Exhibition on Intelligent Transport Systems and Services (ITS).
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- Date: June 15, 2010
Where: IEEE Transactions on Broadcasting
MERL Contact: Philip V. Orlik
Research Area: Communications
Brief - The article "A Synchronization Design for UWB-Based Wireless Multimedia Systems" by Ye, Z., Duan, C., Orlik, P.V., Zhang, J. and Abouzeid, A.A. was published in IEEE Transactions on Broadcasting.
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- Date: January 15, 2010
Where: Wireless Communications and Mobile Computing
MERL Contact: Philip V. Orlik
Research Area: Communications
Brief - The article "Adaptive Antenna Selection at Mobile Stations for SDMA in WiMAX Networks" by Wang, T., Tao, Z., Molisch, A.F., Orlik, P.V. and Zhang, J. was published in Wireless Communications and Mobile Computing.
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- Date: November 30, 2009
Where: IEEE Global Telecommunications Conference (GLOBECOM)
MERL Contacts: Philip V. Orlik; Toshiaki Koike-Akino Brief - The papers "Relay Selection and Data Transmission Throughput Tradeoff in Cooperative Systems" by Shah, V., Mehta, N.B. and Yim, M.H.R., "Medium Access Control Signaling for Reliable Spectrum Agile Radios" by Azarnasab, E., Chen, R.-R., Teo, K.H., Tao, Z. and Farhang-Boroujeny, B., "Unified Analysis of Linear Block Precoding for Distributed Antenna Systems" by Koike-Akino, T., Molisch, A.F., Tao, Z., Orlik, P.V. and Kuze, T., "Multi-user Cooperative Communications with Relay-Coding for Uplink IMT-Advanced 4G Systems" by Cao, L., Zhang, J. and Kanno, N., "Error Control Strategies for WiMAX Multi-Hop Relay Networks" by Fu, W., Tao, Z., Zhang, J. and Agrawal, D.P., "Opportunistic Cell Edge Selection in Multi-Cell OFDMA Networks" by Au-Yeung, C.K., Maaref, A. and Zhang, J. and "A New Coupling Channel Estimator for Cross-Talk Cancellation at Wireless Relay Stations" by Ma, J., Li, G.Y., Zhang, J., Kuze, T. and Iura, H. were presented at the IEEE Global Telecommunications Conference (GLOBECOM).
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- Date: November 1, 2009
Where: Asilomar Conference on Signals, Systems and Computers (ACSSC)
MERL Contacts: Philip V. Orlik; Petros T. Boufounos Brief - The papers "Parametric Compression of Rank-1 Analog Feedback in MIMO-OFDM" by Porat, R. and Orlik, P.V., "Codebook-based Quantized MIMO Feedback for Closed-loop Transmit Precoding" by Pun, M.-O., Porat, R., Orlik, P.V., Zhang, J. and Kuze, T. and "Greedy Sparse Signal Reconstruction from Sign Measurements" by Boufounos, P.T. were presented at the Asilomar Conference on Signals, Systems and Computers (ACSSC).
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- 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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