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Transmitter design in partially coherent multiple antenna systems

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Publication date2005
Host publicationCommunications, 2005. ICC 2005. 2005 IEEE International Conference on
Place of PublicationNew York
PublisherIEEE
Pages2261-2265
Number of pages5
Volume4
ISBN (print)0-7803-8938-7
<mark>Original language</mark>English
EventIEEE International Conference on Communications (ICC 2005) - Seoul
Duration: 16/05/200520/05/2005

Conference

ConferenceIEEE International Conference on Communications (ICC 2005)
CitySeoul
Period16/05/0520/05/05

Conference

ConferenceIEEE International Conference on Communications (ICC 2005)
CitySeoul
Period16/05/0520/05/05

Abstract

In this paper, we study the effect of channel estimation error on transmitter design in a multiple input multiple output (MIMO) channel. We assume that only knowledge of either the channel correlation or mean is available at the transmitter and find the transmitting strategy. Under covariance feedback, at the transmitter the channel is modelled as a matrix of zero mean circularly symmetric complex Gaussian (ZMCSCG) random variables with known covariances. We assume that only rows of channel matrix are correlated. Under mean feedback the covariance of channel is modelled as white. We determine the necessary and sufficient conditions under which a unit rank input covariance matrix, i.e. eigen-beamforming, can achieve capacity lower bound. Numerical simulations are conducted to corroborate theoretical results