Transmission scheme and performance analysis for decode-and-forward MIMO two-way relay systems  

作　　者：ZHAO Rui YANG LuXi ZHU WeiPing 

机构地区：[1]School of Information Science and Engineering, Southeast University, Nanjing 210096, China [2]Department of Electrical and Computer Engineering, Concordia University, Montreal QC H3G 1M8, Canada

出　　处：《Science in China(Series F)》2009年第12期2308-2316,共9页中国科学（F辑英文版）

基　　金：Supported by the National Basic Research Program of China (Grant No. 2007CB310603);the National Natural Science Foundation of China(Grant Nos. 60672093, 60496310, 60702029, 60902012);the National High-Tech Research & Development Program of China (Grant No.2007AA01Z262);the Natural Science Foundation of Jiangsu Province (Grant No. BK2005061)

摘　　要：In rd （DF） MIMO two-way relay systems, the transmission schemes are designed and the closed-form expressions for the outage probability and average symbol error rate （ASER） of the twoway relay system are derived based on two different scenarios of channel state information （CSI）. For perfect CSI, the maximum-ratio-transmission and combining （MRT-MRC） technique is applied to design the beamforming and combining vectors. Without perfect CSI, the transmission scheme with limited feedback is designed, and the analytical results are verified through two kinds of codebooks, i.e., random vector quantization and Grassmann. The simulation results show that, the proposed transmission schemes for the two-way relay system can outperform other transmission schemes in the performance of outage probability and ASER, and the accuracy of the derived closed-form expressions is also verified by the numerical simulations.In rd （DF） MIMO two-way relay systems, the transmission schemes are designed and the closed-form expressions for the outage probability and average symbol error rate （ASER） of the twoway relay system are derived based on two different scenarios of channel state information （CSI）. For perfect CSI, the maximum-ratio-transmission and combining （MRT-MRC） technique is applied to design the beamforming and combining vectors. Without perfect CSI, the transmission scheme with limited feedback is designed, and the analytical results are verified through two kinds of codebooks, i.e., random vector quantization and Grassmann. The simulation results show that, the proposed transmission schemes for the two-way relay system can outperform other transmission schemes in the performance of outage probability and ASER, and the accuracy of the derived closed-form expressions is also verified by the numerical simulations.

关 键 词：decode-and-forward two-way relay outage probability average symbol error rate MRT-MRC limited feedback 

分 类 号：TP360.3[自动化与计算机技术—计算机系统结构] TP393.11[自动化与计算机技术—计算机科学与技术]