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Closed-form power allocation scheme for space-time coded multiple-antenna systems with imperfect CSI

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3 Author(s)
Quan Kuang ; Dept. of EE, City Univ. of Hong Kong, Hong Kong, China ; Shu-hung Leung ; Xiangbin Yu

This paper presents a closed-form power allocation scheme for space-time coded multiple-antenna systems with imperfect channel state information at the transmitter. The proposed scheme is based on a so-called compressed signal-to-noise ratio (CSNR) criterion, where a single compression factor is used to minimize the bit-error-rate (BER). The obtained closed-form solution is computational efficient and achieves almost the same performance as the existing optimal approach which requires numerical search, and outperforms the existing suboptimal closed-form algorithm.

Published in:

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Date of Conference:

14-19 March 2010