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MIMO系统空时特征波束性能分析 被引量：4

Performance analysis of space-time eigen-beamforming in MIMO systems
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摘要 针对结合了发射与接收分集技术和空时编码技术的MIMO无线通信系统误比特率性能问题,提出了一种利用信道矩阵的最大奇异值平方的概率密度函数(pdf),来推导相干接收条件下,基于M-PAM和M-QAM调制的MIMO系统最大比合并精确误比特率显式表达式的方法。以该误比特率表达式为依据,分析了天线数目为可配置资源条件下,发射天线和接收天线的不同配置方案对系统性能的影响。通过计算机的蒙特卡洛仿真验证了理论分析结论。 For the BER performance of a MIMO wireless communication system employing transmit-receive diversity and space-time codes, a new method of maximal ratio combining exact closed-form expressions for the BER is proposed on the basis of the idea that the probability density function （pdf） of the square of the maximum singular value of the channel matrix take the expectation with respect to conventional exact BER under the coherent reception of M-PAM and M-QAM. Based on the analysis results, the BER performance of MIMO system equipped with different transmit and receive antennas is analyzed when the total number of antennas are used. The validity of the performance analysis is demonstrated by computer simulations.
作者 王勇 廖桂生 王喜媛
机构地区 西安电子科技大学雷达信号处理国家重点实验室
出处 《电波科学学报》 EI CSCD 北大核心 2009年第2期297-301,共5页 Chinese Journal of Radio Science
基金 国家自然科学基金重点项目(No.60736009) 陕西省自然科学基金项目(No.SJ08F16)
关键词 多输入多输出 误比特率 瑞利衰落 最大比合并 MIMO bit error rate（BER） rayleigh fading maximal ratio combining（MRC）
分类号 TN919.3 [电子电信—通信与信息系统]
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参考文献12

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二级参考文献16

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共引文献14

同被引文献66

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引证文献4

二级引证文献10

电波科学学报
2009年 第2期

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