Efficiently Decoded Full-Rate Space-Time Block Codes

被引：5
|
作者：
Torrieri, Don [1 ]
Valenti, Matthew C. [2 ]
机构：
[1] USA, Res Lab, Adelphi, MD USA
[2] W Virginia Univ, Morgantown, WV 26506 USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2010年 / 58卷 / 02期
基金：
美国国家科学基金会;
关键词：
Space-time block codes; genetic algorithm; diversity; quasi-orthogonal codes; QUASI-ORTHOGONAL STBC; PERFORMANCE ANALYSIS;
D O I：
10.1109/TCOMM.2010.02.090003
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：
Space-time block codes with orthogonal structures typically provide full-diversity reception and simple receiver processing. However, rate-1 orthogonal codes for complex constellations have not been found for more than two transmit antennas. By using a genetic algorithm, rate-1 space-time block codes that accommodate very simple receiver processing at the cost of reduced diversity are designed in this paper for more than two transmit antennas. Simulation results show that evolved codes combined with efficient outer codes provide better performance over fading channels than minimum-decoding-complexity quasi-orthogonal codes at typical operating signal-to-noise ratios. When the fading is more severe than Rayleigh fading, the spectral efficiency is specified, and an efficient outer code is used, evolved codes outperform orthogonal space-time block codes.
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页码：480 / 488
页数：9
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