Optimization of Linear Dispersion Codes for Wireless Relay Networks
Optimization of Linear Dispersion Codes for Wireless Relay Networks
复制标题
无线中继网络线性色散码的优化
DOI：
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发表时间：
2009
影响因子：
3.9
通讯作者：
T. Le
中科院分区：
文献类型：
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作者：
Ha X. Nguyen;Ha H. Nguyen;T. Le
提出了一种瑞利衰落信道下无线中继网络中线性色散空时码的设计方法。码的设计与随机拟梯度算法，以尽量减少平均成对错误概率的上界。仿真结果表明，优化后的编码比基于各向同性分布随机生成的编码获得约2 dB的编码增益。
A design method is introduced for linear dispersion (LD) space-time codes in wireless relay networks under Rayleigh fading channels. The codes are designed with a stochastic quasi-gradient algorithm to minimize the upper bound of the average pairwise error probability. Simulation results show that the optimized codes achieve a coding gain of about 2 dB over codes that are randomly generated based on the isotropic distribution.