Performance Analysis of Maximum Likelihood Detection for MIMO Systems

被引:0
|
作者
Shin, Myeongcheol [1 ]
Kwon, Dong Seung [2 ]
Lee, Chungyong [1 ]
机构
[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
[2] Elect & Telecommun Res Inst, Taejon, South Korea
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The performance of NIL detection for the given channel is analyzed in spatially multiplexed MIMO system. In order to obtain the vector symbol error rate, we define error vectors which represent the geometrical relation between lattice points. The properties of error vectors are analyzed to show that all lattice points in an infinite lattice almost surely have four nearest neighbors after random channel transformation. Using this information and the minimum distance obtained by the modified sphere decoding algorithm, we formulate the analytical performance of vector symbol error rate(VSER) over the given channel. To verify the results, we simulate ML performance over the various random channels which are classified into three categories: unitary channel, dense channel, and sparse channel. From the simulation results, it is verified that the derived analytical result gives a good approximation for the performance of NIL detector over all random MIMO channels.
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收藏
页码:2154 / +
页数:2
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