天线选择对全双工MIMO系统的容量影响研究.doc

文档介绍：
天线选择对全双工 MIMO 系统的容量影响
研究
杨雨苍,李立华**
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(北京邮电大学信息与通信工程学院,北京 100876)
摘要:全双工无线通信技术是当今无线通信领域研究的热点之一,能够成倍提升系统容量。
在全双工系统中结合 MIMO 技术,能够充分利用信道的空间资源,以此提高无线通信系统
的频谱利用率和功率效率,有效改善系统的性能。而全双工 MIMO 系统在低散射的环境下,
由于实际传播路径的影响,信道的秩减少,系统容量性能下降。本文在全双工 MIMO 系统
中引入天线选择,并研究分析了在低秩信道条件下应用天线选择对系统容量的影响。仿真和
分析显示,在系统中进行适当天线的选择可提升系统容量、节省发射功率、优化射频链路并
降低系统系统成本。
关键词:全双工;MIMO;天线选择;低秩信道
中图分类号:
Research on Capacity of Full-duplex MIMO System with
Antenna Selection
YANG Yucang, LI Lihua
(School of Information munication Engineering, Beijing University of Posts and
munications, Beijing 100876)
Abstract: Full-duplex technology, which can exponentially increase the system capacity, is
ing one of the most attractive topics in the munication field. In a full-duplex
bined with MIMO technology,channel space resources can be made full use of, result
in increased spectral efficiency and power efficiency, as well as effectively improved system
performance. But in a low scattering environment, because of the influence of the real propagation
path, the rank of the channels in the full-duplex MIMO system will decrease, leading to the
degradation of the system capacity. In this paper, antenna selection is introduced in the full-duplex
MIMO system. Influences on the system capacity are analyzed when applying antenna selection in
the low-rank wireless channels. Simulat