Parametric compression of rank-1 analog feedback in MIMO-OFDM

Authors:
Ron Porat;Phil Orlik
Affiliations:
InterDigital Inc., Mitsubishi Electric Research Labs;InterDigital Inc., Mitsubishi Electric Research Labs
Venue:
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Year:
2009

Citing 2
Cited 0

Fast transfer of channel state information in wireless systems

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IEEE Transactions on Information Theory

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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.