Title :
Parametric compression of Rank-1 analog feedback in MIMO-OFDM
Author :
Porat, Ron ; Orlik, Phil
Author_Institution :
Mitsubishi Electr. Res. Labs., InterDigital Inc., PA, USA
Abstract :
We consider the problem of channel state information (CSI) transmission on a fast feedback link for a Multiuser-MIMO OFDM system. We compare codebook based feedback with analog based feedback and propose a new compressed analog feedback suitable for correlated antennas that provides excellent tradeoff between uplink overhead and downlink throughput. We show via bi-directional simulation results the reliability of analog feedback in general and its advantage over codebook based feedback.
Keywords :
MIMO communication; OFDM modulation; codes; feedback; channel state information transmission; codebook based feedback; multiuser-MIMO OFDM system; parametric compression; rank-1 analog feedback; Antenna feeds; Base stations; Bidirectional control; Channel state information; Downlink; Frequency estimation; OFDM; State feedback; Throughput; Transmitters;
Conference_Titel :
Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-5825-7
DOI :
10.1109/ACSSC.2009.5469863
