| Nakagami空间相关衰落信道下MIMO-OFDM 系统误码率的计算与仿真 |
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| 引用本文： | 张金荣,唐贤伦,杨佳,曹长修. Nakagami空间相关衰落信道下MIMO-OFDM 系统误码率的计算与仿真[J]. 中南民族大学学报(自然科学版), 2007, 26(2): 50-53 |
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| 作者姓名： | 张金荣 唐贤伦 杨佳 曹长修 |
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| 作者单位： | [1]重庆大学自动化学院 [2]重庆邮电大学自动化学院 [3]重庆 |
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| 基金项目： | 重庆市科委自然科学基金;重庆市教委资助项目 |
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| 摘 要： | 设计了一种新的MIMO-OFDM系统模型.以该模型为基础,对基于STBC编码的空间相关Nakagami-m平坦衰落信道下的误码率进行了研究,以获得Nakagami相关衰落下MIMO-OFDM系统的误码率以及空间相关性和分布参数对误码率的影响,得出了一种误码率的表达式.对空间相关条件下4发1收MIMO-OFDM系统的误码率进行了性能仿真,结果表明:采用Nakagami分布比较吻合实际测量的数据,信道衰落基于Nakagami-m分布的STBC编码能很好的满足MIMO-OFDM系统的差错性能要求.
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| 关 键 词： | MIMO-OFDM系统 Nakagami分布 相关衰落 误码率 |
| 文章编号： | 1672-4321(2007)02-0050-04 |
| 修稿时间： | 2007-01-27 |
Computation and Simulation of Symbol Error Rate of MIMO-OFDM in Nakagami Spatial Fading Channels |
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| Zhang Jinrong,Tang Xianlun,Yang Jia,Cao Changxiu. Computation and Simulation of Symbol Error Rate of MIMO-OFDM in Nakagami Spatial Fading Channels[J]. Journal of South-Central Univ for, 2007, 26(2): 50-53 |
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| Authors: | Zhang Jinrong Tang Xianlun Yang Jia Cao Changxiu |
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| Abstract: | A basic MIMO-OFDM model is first described to get the effect of MIMO system parameters on signal error rate(SER).Then researches on SER of this MIMO-OFDM model based on STBC in Nakagami spatial fading channels are put forward,and the corresponding SER formula is given which is followed by effect analysis of spatial correlation and Nakagami distribution parameter on SER.Finally,the analytical results are verified through our computer simulations.Results show that adopting Nakagami fading channels can relatively accord with practice data in contrast with Rayleigh distribution or Rice distribution in some case,and STBC in Nakagami spatial fading channels can meet with the performance requirement of MIMO-OFDM system. |
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| Keywords: | MIMO-OFDM Nakagami distribution spatial fading symbol error rate |
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