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» Transmit Beamforming for Frequency-Selective Channels
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IWCMC
2010
ACM
15 years 1 months ago
Joint network coding and beamforming techniques for downlink channels
We propose a joint optimization of Network Coding and MIMO techniques to improve the downlink channel throughput of a wireless base station. Specifically, we consider a MIMO base...
Monchai Lertsutthiwong, Thinh Nguyen, Bechir Hamda...
ICASSP
2011
IEEE
14 years 3 months ago
A robust artificial noise aided transmit design for MISO secrecy
This paper considers an artificial noise (AN) aided secrecy rate maximization (SRM) problem for a multi-input single-output (MISO) channel overheard by multiple single-antenna ea...
Qiang Li, Wing-Kin Ma
VTC
2006
IEEE
15 years 5 months ago
SR-ARQ for MIMO OFDM Systems with Channel State Information Only at the Receiver
— In this paper, we compare two selective-repeat automatic-repeat-request (SR-ARQ) protocols for spatial multiplexing multiple-input multiple-output (MIMO) orthogonal frequency-d...
Chunlong Bai, Ivan J. Fair, Witold A. Krzymien
TSP
2012
13 years 7 months ago
Robust Multicast Beamforming for Spectrum Sharing-Based Cognitive Radios
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...
TWC
2010
14 years 6 months ago
Closed-Loop Transmit Diversity with Imperfect Feedback
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. In these closed-loop systems, feedback delay...
A. Heidari, Amir K. Khandani