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平坦瑞利衰落信道下MIMO系统性能 被引量：2

Performance of MIMO System In Slow Flat Rayleigh Fading Channels
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摘要 分析了瑞利衰落对普通无线系统的影响,在此基础上重点从空间复用提高容量和空间分集对抗衰落两方面研究了瑞利衰落信道下MIMO系统的性能。分析和仿真结果表明,采用V-BLAST算法实现空间复用增益时,随着收发天线数目的增加,复用系统的符号错误概率增加;不同的分集结合方式对分集系统性能的影响不一样,随着天线数目的增加,分集系统的符号错误概率都递减。 The channel model of MIMO system is introduced first, then the effect of Rayleigh fading on the symbol error probability for 16 - QAM and the performance on the capacity of MIMO system are analyzed based on this. The performance of MIMO system in slow flat Rayleigh fading channel is studied from these two aspects including spatial multiplexing and spatial diversity. The results of analysis and simulation show that the symbol error probabilities of spatial multiplexing system realized by V - BLAST algorithm increase with the increase of the number of transmitting and receiving antennas. And different diversity combing techniques have different influence on the system perfotTnance in which MRC is the best, EGC takes second place and SC is bad; and the symbol error probabilities of spatial diversity system decrease with the increase of the number of transmitting and receiving antennas.
作者 王建峰 黄国策 陈茂 朱蒙
机构地区 空军工程大学电讯工程学院 兰州军区通信网络技术管理中心
出处 《空军工程大学学报（自然科学版）》 CSCD 北大核心 2008年第1期66-69,共4页 Journal of Air Force Engineering University(Natural Science Edition)
关键词 瑞利衰落 符号错误概率 V—BLAST算法 MINO Rayleigh fading symbol error probability V - BLAST algorithm antenna diversity
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献10

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共引文献20

同被引文献14

  • 1曹海燕,李君,韦岗.瑞利衰落信道下基于LDPC码的USTM的MIMO系统[J].电路与系统学报,2007,12(1):147-152. 被引量：2
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  • 7Elsherif A, Ding Z, Liu X. Dynamic MIMO precoding for fem- tocell interference mitigation. IEEE Trans. on Communica- tions, 2014, 1(1):1-19.
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空军工程大学学报（自然科学版）
2008年 第1期

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