基于MIMO的双向解调中继协议及SER性能  

MIMO-based demodulate-and-forward two-way relaying protocol and SER performance analysis

作　　者：贠超[1] 易辉跃[1] 卜智勇[1,2] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050 [2]上海翰讯无线技术有限公司,上海200050

出　　处：《吉林大学学报（工学版）》2011年第1期254-258,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2006AA01Z280)

摘　　要：提出的基于MIMO的双向解调中继协议,不仅可以提高频谱利用率,还可以提高传输的可靠性。该协议包括两个用户终端和一个多天线解调转发中继节点。为了对协议进行性能评估,推导了采用QAM调制的基于MIMO的双向解调转发中继协议的误符号率(SER)性能闭式解。仿真结果验证了理论推导的正确性。A Multi-Input Multi Output （MIMO） based two-way Demodulate and- Forward （DMF） relaying protocol was proposed. Incorporating MIMO technology into the relaying protocol can not only increase the spectral efficiency, but also enhance the transmission reliability. This relaying protocol was composed of two user terminals and one multi-antenna DMF relaying node. Moreover, to evaluate the performance of the proposed relaying protocol, closed-form Symbol Error Rate （SER） expressions of Quadrature Amplitude Modulation （QAM） for this MIMO-based DMF relaying protocol was derived. Simulation results demonstrate SER performance of the two-way DMF relaying system and verify the theoretical analysis.

关 键 词：通信技术 中继 解调转发 多天线 误符号率 

分 类 号：TN911.6[电子电信—通信与信息系统] TN915.04[电子电信—信息与通信工程]