標題: Statistical Bit Allocation and Statistical Precoding for Correlated MIMO Channels With Decision Feedback
作者: Lin, Yuan-Pei
Phoong, See-May
電機工程學系
Department of Electrical and Computer Engineering
公開日期: 1-十一月-2012
摘要: In this letter, we jointly consider statistical precoding and statistical bit allocation for correlated MIMO channels. Given the statistics of the channel, we derive statistical BER bounds for high and low SNR ranges. Based on the BER bounds, statistical precoder and statistical bit allocation are designed. The statistical precoder helps to expose the statistical difference among the subchannels, which is then exploited by bit allocation. Moreover, we will incorporate bit allocation in determining detection ordering for the decision feedback receiver and present a suboptimal ordering forminimizing the worst subchannel error rate. The suboptimal solution can be implemented efficiently by modifying existing fast algorithms developed for uniform bit allocation. Although the statistical precoder and bit allocation are designed for high and low SNR ranges, very good performance can be achieved for all SNR. Simulations show that the performance of the proposed system is comparable to one that has instantaneous feedback rate of around 4 bits per channel.
URI: http://dx.doi.org/10.1109/LSP.2012.2202648
http://hdl.handle.net/11536/16790
ISSN: 1070-9908
DOI: 10.1109/LSP.2012.2202648
期刊: IEEE SIGNAL PROCESSING LETTERS
Volume: 19
Issue: 11
起始頁: 761
結束頁: 764
顯示於類別:期刊論文


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  1. 000309130900002.pdf