摘要
针对全双工(full-duplex)中继系统,研究了瑞利信道环境下解码转发(decode-and-forward)全双工中继系统性能。综合考虑了数据传输过程中可能会发生的平均数据包错误率,以及全双工中继接收端与发射端可能产生的自干扰影响,推导出以源节点和中继节点调制等级为变量的端到端系统稳定性表达式,利用该表达式能进行中继的选择以及该系统好坏的判定,最后通过matlab仿真验证了全双工中继系统在5 dB信噪比条件下比半双工(half-duplex)中继系统性能提高了11%.
For full duplex relay system,the performance of decode and forward full duplex relay system under Rayleigh channel environment is studied.Considering the average packet error rate that may occur in the process of data transmission and the possible self-interference effects of the full duplex relay couseing by receiver and the transmitter,the stability expression of the end-to-end system with the modulation level of the source node and the relay node is derived.The expression can be used to select the relay.At last,the MATLAB simulation proves that the full duplex relay system has increased by 11%over the half duplex(half-duplex)relay system at high SNR conditions.
作者
王豪
董增寿
康琳
王珍妮
WANG Hao;DONG Zeng-shou;KANG Lin;WANG Zhen-ni(School of Electronic Information Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《太原科技大学学报》
2019年第6期437-441,446,共6页
Journal of Taiyuan University of Science and Technology
基金
山西省青年基金(201701D221109)
太原科技大学校博士启动金(20162030)
晋城市科技计划项目(201501004-4)
关键词
全双工
自干扰
调制等级
系统稳定性
full-duplex
self-interference
modulation level
system stability
