Performance analysis for multi-node decode-and-forward relaying in cooperative wireless networks
Performance analysis for multi-node decode-and-forward relaying in cooperative wireless networks
复制标题
协作无线网络中多节点解码转发中继的性能分析
DOI：
10.1109/icassp.2005.1415761
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Liu
中科院分区：
文献类型：
--
作者：
A. Sadek;Weifeng Su;K. Liu
我们提供的符号错误率（SER）性能分析的多节点无线网络采用解码和转发合作策略。在信噪比足够高的情况下，推导了采用M进制相移键控（M-PSK）信令的N个中继网络的误码率的近似表达式。近似取决于忽略SER中的项，其在SNR中具有高于（N+1）的阶。推导出的近似SER的有效性是有道理的，通过计算机模拟网络与不同数量的继电器。仿真结果表明，该近似在高信噪比下是紧的，并且协作协议可以实现与协作终端数相等的全分集阶数。
We provide symbol-error-rate (SER) performance analysis for a multi-node wireless network employing a decode-and-forward cooperation strategy. An approximate expression for the SER of an N relay network with M-ary phase-shift-keying (M-PSK) signalling is derived at high enough signal-to-noise ratio (SNR). The approximation hinges on ignoring terms in the SER which are of order higher than (N+1) in the SNR. The validity of the derived approximate SER is justified through computer simulations for networks with different numbers of relays. The simulation results show that the approximation is tight at high SNR and that the cooperation protocol can achieve full diversity order equal to the number of cooperating terminals.