通信学报 ›› 2014, Vol. 35 ›› Issue (10): 59-66.doi: 10.3969/j.issn.1000-436x.2014.10.008

• 论文Ⅰ 空间信息传输网络 • 上一篇    下一篇

基于卫星移动MIMO系统的天线相关性性能分析

林源1,2,何元智2,王敬超2,韩寒1,2   

  1. 1 解放军理工大学 通信工程学院,江苏 南京 210007
    2 中国电子设备系统工程公司,北京 100141
  • 出版日期:2014-10-25 发布日期:2017-06-14
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;国家高技术发展计划(“863”计划)基金资助项目

Performance analysis of antenna correlation on land mobile satellite based MIMO systems

Yuan LIN1,2,Yuan-zhi HE2,Jing-chao WANG2,Han HAN1,2   

  1. 1 College of Communication Engineering,PLA University of Science and Technology,Nanjing 210007,China
    2 Institute of China Electronic System Engineering Corporation,Beijing 100141,China
  • Online:2014-10-25 Published:2017-06-14
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National High Technology Research and Development Program of China(863 Program)

摘要:

研究了卫星移动MIMO系统中,上、下行信道存在阴影衰落和空间相关条件下的系统性能,利用围线积分、留数定理及特殊函数积分等方法推导了系统中断概率(OP),平均符号错误概率(SER)的闭合表达式。利用Monte-Carlo 仿真分析了系统在不同相关系数、天线数目及调制方式下的性能表现。仿真结果表明,尽管阴影衰落和空间相关性降低了系统性能,但与单天线系统相比,卫星移动MIMO系统的OP及SER改善明显。

关键词: 卫星通信, MIMO, 天线相关性, 阴影莱斯衰落

Abstract:

The joint effect of spatial correlation and shadowing of channels on the performance of land mobile satellite MIMO system was analyzed.With the help of contour integral,residue theorem and integral of special functions,closed-form approximations of the outage probability (OP) and the average symbol error rate (SER)were derived.The Monte Carlo simulations results were illustrated through several examples in order to assess the impact of correlation coefficient,the number of antenna and different modulation mode on the performance.It shows that although channel correlation and shadowing degrade system gain,significant performance gains can be obtained by multi-satellite MIMO systems compared to relevant single-input single-output (SISO) ones.

Key words: satellite communication, MIMO, antenna correlation, shadowed Rician

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