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Nakagami-m衰落信道下空时分组码的性能估计
引用本文:王旭东,岳殿武,刘其中,林斌. Nakagami-m衰落信道下空时分组码的性能估计[J]. 电波科学学报, 2006, 21(5): 782-787
作者姓名:王旭东  岳殿武  刘其中  林斌
作者单位:1. 西安电子科技大学,天线与微波技术国家重点实验室,陕西,西安,710071;大连海事大学,信息工程学院,辽宁,大连,116026
2. 大连海事大学,信息工程学院,辽宁,大连,116026
3. 西安电子科技大学,天线与微波技术国家重点实验室,陕西,西安,710071
基金项目:辽宁省自然科学基金,国家部委预研项目
摘    要:基于等效单输入单输出SISO (Single-input Single-output) 模型,利用矩量母函数 (MGF) 分析法,空时分组码STBC (Space-Time Block Coding) 的误符号率是可以得到其准确闭式表达式的.对于独立同分布Nakagami-m衰落信道下的空时分组码的性能进行了研究,给出了采用M-PSK 和M-QAM调制方案的不同空时分组编码矩阵误符号率的闭式解以及基于闭式解的解析性能结果,通过蒙特卡洛仿真验证了闭式解的准确性.还从调制方案的角度对于几种新的空时分组码的性能进行了一些新的讨论.

关 键 词:空时分组码  Nakagami-m衰落信道  矩量母函数  误符号率
文章编号:1005-0388(2006)05-0782-06
收稿时间:2005-03-09
修稿时间:2005-03-09

Evaluation of space-time block coding over Nakagami-m fading channels
WANG Xu-dong,YUE Dian-wu,LIU Qi-zhong,LIN Bin. Evaluation of space-time block coding over Nakagami-m fading channels[J]. Chinese Journal of Radio Science, 2006, 21(5): 782-787
Authors:WANG Xu-dong  YUE Dian-wu  LIU Qi-zhong  LIN Bin
Abstract:A closed-form expression for the exact symbol error rate (SER) of space-time block coding (STBC) is derived by means of the moment generating function (MGF) with the equivalent single-input single-output (SISO) model. The performance of STBC over independent identically distributed Nakagami-m fading channels is investigated. The closed-form solutions for the SER of various code matrices with M-PSK and M-QAM modulations as well as the performance analysis results with these expressions are presented, and also, Monte Carlo simulation results are given to demonstrate the accuracy of closed-form solutions. In addition, from the point of view of different modulation schemes, some new discussions about the performance of several novel STBC designs are made.
Keywords:space-time block coding (STBC)   Nakagami-m fading channels   moment generating function (MGF)   symbol error rate (SER)
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