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Performance Analysis of MIMO Eigenmode Transmission System under Realistic Channel and System Conditions
Seeho TING Kei SAKAGUCHI Kiyomichi ARAKI
IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technology
MIMO, eigenmode transmission, imperfect channel estimation, delayed quantized feedback, spatial correlation, continuous fading channel,
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Multi-Input Multi-Output (MIMO) systems, which utilize multiple antennas at both the receiver and transmitter, promise very high data rates in a rich scattering environment. It was proven in literature that with optimal power allocation, MIMO eigenmode transmission system (EMTS) is optimal because MIMO capacity is maximized. However, the performance of MIMO EMTS is very sensitive to the accuracy of channel state information and thus it is of practical importance to analyze its performance when channel state information is corrupted under realistic system and propagation conditions. In this paper, we lower bound the mutual information of MIMO EMTS with imperfect channel estimation and delayed quantized feedback in a spatially correlated continuous fading channel. Our results showed that this lower bound is tight and can serve as a comprehensive guide to the actual performance of MIMO EMTS under practical operating conditions.