Optimization of Linear Dispersion Codes for Wireless Relay Networks

被引：3
|
作者：
Nguyen, Ha X. [1 ]
Nguyen, Ha H. [1 ]
Le-Ngoc, Tho [2 ]
机构：
[1] Univ Saskatchewan, Dept Elect Engn, Saskatoon, SK S7N 5A9, Canada
[2] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ H3A 2A7, Canada
来源：
IEEE SIGNAL PROCESSING LETTERS | 2009年 / 16卷 / 05期
关键词：
Coding gain; distributed space-time coding; pair-wise error probability (PEP); relay networks; stochastic optimization; USER COOPERATION DIVERSITY; SPACE; TIME; IMPLEMENTATION;
D O I：
10.1109/LSP.2009.2015988
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：366 / 369
页数：4
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