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An improved CQI feedback compression algorithm for MIMO-OFDM system
Author(s): 
Pages: 776-782
Year: Issue:  8
Journal: Journal of University of Science and Technology of China

Abstract: 针对多用户MIMO-OFDM系统的信道质量指示(CQI)反馈特征值序列空间维相关性小、不利于反馈压缩的问题,分析了它的分布特性,利用其期望提出了一种适应CQI反馈压缩特性的改进算法.仿真结果表明,在多用户V-BLAST+OFDM的系统下,改进的算法提高了反馈信息的压缩率和系统的吞吐量性能,在几乎不影响吞吐量性能的前提下有效地降低了反馈开销.
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