Impact of Channel Estimation Errors in Amplify-andforward Two-way Relaying System
In this paper, the impact of channel state information (CSI) estimation errors on the performance of amplify-andforward (AF) two-way relay network (TWRN) with single relay assisted has been investigated. The variance of channel estimation errors varies for different values of the transmitting SNR, dominated by the channel estimation quality order. We derive the exact closed-form and the approximate expressions of the cumulative distribution function (CDF) of the received signalnoise- ratio (SNR) for the link. Based on this, the system outage probability is given. What’s more, we present the approximate expression of the average symbol error rate (SER) under different levels of channel estimation errors by using the moment generating function (MGF). Numerical results validate the correctness of our theoretical analysis for SER.
two-way relay channel estimation errors outage probability average symbol error rate (SER)
Zhuo Chen Yueming Cai Lei Wang Nan Sha
Institute of Communications Engineering, PLA University of Science and Technology Nanjing 210007, Ch Institute of Communications Engineering, PLA University of Science and TechnologyNanjing 210007, Chi
国际会议
南京
英文
1-5
2011-11-09（万方平台首次上网日期，不代表论文的发表时间）