摘要:
分析并推导在解码-转发中继方式下时分半双工MIMO中继信道的容量公式,在2种不同的中继选择算法下,应用蒙特卡罗仿真比较MIMO中继系统与一般蜂窝系统的性能。仿真结果表明,在使用适当的中继选择算法后,与一般蜂窝系统相比,时分半双工MIMO中继系统在容量、覆盖范围等方面均有更好的性能,且中继用户的能量消耗较低。
关键词:
多输入多输出,
中继信道,
时分半双工,
解码-转发
Abstract:
This paper derives the capacity formula of time-division half-duplex MIMO decoder-forward relay channel, and compares the performance between time-division half-duplex MIMO relay system and general cellular system by using Monte-Carlo simulation. Simulation results show that, due to the use of an appropriate relay selection algorithm, time-division half-duplex MIMO relay system is better than general cellular system in capacity, coverage. It is prominent that relay user need not use a high transmit power to obtain capacity gain.
Key words:
MIMO,
relay channel,
time-division half-duplex,
decoder-forward
中图分类号:
祖立军, 王平, 王玉金, 韩静, 刘富强. 时分半双工MIMO中继系统性能分析[J]. 计算机工程, 2011, 37(2): 88-90.
JIE Li-Jun, WANG Beng, WANG Yu-Jin, HAN Jing, LIU Fu-Jiang. Performance Analysis of Time-division Half-duplex MIMO Relay System[J]. Computer Engineering, 2011, 37(2): 88-90.