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TSP
2010
12 years 11 months ago
Reduced feedback schemes using random beamforming in MIMO broadcast channels
A random beamforming scheme for the Gaussian MIMO broadcast channel with channel quality feedback is investigated and extended. Considering the case where the receivers each have r...
Matthew Pugh, Bhaskar D. Rao
ICASSP
2010
IEEE
13 years 5 months ago
Feedback reduction in MIMO broadcast channels with LMMSE receivers
In this paper we analyze the performance of random beamforming schemes in a multi-user Gaussian broadcast channel. Each user will have N > 1 receive antennas allowing optimal c...
Matthew Pugh, Bhaskar D. Rao
VTC
2007
IEEE
13 years 11 months ago
Opportunistic Feedback Protocol for Achieving Sum-Capacity of the MIMO Broadcast Channel
—This paper presents an opportunistic feedback (OF) protocol that achieves the asymptotic sum-capacity of the fading broadcast channel (BC) with a limited amount of feedback. The...
Rajiv Agarwal, Chan-Soo Hwang, John M. Cioffi
CORR
2007
Springer
72views Education» more  CORR 2007»
13 years 5 months ago
How much feedback is required in MIMO Broadcast Channels?
— In this paper, a downlink communication system, in which a Base Station (BS) equipped with M antennas communicates with N users each equipped with K receive antennas is conside...
Alireza Bayesteh, Amir K. Khandani
ICC
2008
IEEE
101views Communications» more  ICC 2008»
13 years 11 months ago
SINR Estimation in Random Beamforming with Noisy MIMO Channel Measurements
—An improved SINR metric is proposed for the random beamforming scheme introduced by Sharif and Hassibi, when the channel observation used to compute the SINR is known to be nois...
Roland Tresch, Maxime Guillaud