On the Capacity of MIMO Channels with Outdated Channel State Information

Abstract:

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A Multiple-input multiple-output (MIMO) time-varying flat fading channel is considered. The transmitter obtained the channel state information (CSI) relying on the reciprocity principle or by the feedback from the receiver. Thus, channel state information at the transmitter (CSIT) is outdated due to the delay between the estimation of the channel and the transmission of the data. In order to achieve the maximum channel capacity, the transmitter linearly precoded the signal before transmission based on the outdated CSIT. Under the assumptions of wide-sense stationary uncorrelated scattering Rayleigh fading channels and Jake’s model, the instantaneous mutual information and ergodic capacity is derived for MIMO channels with outdated CSIT. The information outage probability of MIMO channel with outdated CSIT is also presented.

Info:

Periodical:

Advanced Materials Research (Volumes 204-210)

Edited by:

Helen Zhang, Gang Shen and David Jin

Pages:

2053-2056

DOI:

10.4028/www.scientific.net/AMR.204-210.2053

Citation:

Y. Li et al., "On the Capacity of MIMO Channels with Outdated Channel State Information", Advanced Materials Research, Vols. 204-210, pp. 2053-2056, 2011

Online since:

February 2011

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Price:

$35.00

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