电讯技术2016，Vol.56Issue(8)：906-912,7.DOI:10.3969/j.issn.1001-893x.2016.08.013
短波通信多组空时编码中等效MIMO模型ZF解码
Effective MIMO Model Zero-Forcing Decoding for Multi-group Space-Time Coding in HF Communications
摘要
Abstract
This paper proposes an effective multiple-input multiple-output( MIMO) model zero-forcing( ZF) decoding algorithm for multi-group space-time coding( MGSTC) in high frequency( HF) communications. To reduce the computation complexity,the algorithm divides the original multiple-time-slot MIMO system into some multiple time slot single-input multiple-output( SIMO) systems each of which is equivalent to new sin-gle-time-slot MIMO system model. After left multiplying transpose of effective channel matrix separately, maximal ratio combine( MRC) and ZF decoding are performed to obtain signal estimation,thus avoiding high-order matrix QR decomposition in sphere decoding(SD). The simulation results show that compared with virtual MIMO model SD decoding algorithm,the effective MIMO model ZF decoding has lower than one order of magnitude in computation complexity with 1 dB loss in bit error rate( BER) performance.关键词
短波通信/多组空时编码/多输入多输出/迫零解码Key words
HF communication/multi-group space-time coding/MIMO/zero-forcing decoding分类
信息技术与安全科学引用本文复制引用
康瑞琪,葛利嘉,张振宇..短波通信多组空时编码中等效MIMO模型ZF解码[J].电讯技术,2016,56(8):906-912,7.基金项目
国家自然科学基金资助项目(61271251,61471366) （61271251,61471366）
重庆市研究生科研创新项目(CYS14204) Foundation Item:The National Natural Science Foundation of China(No.61271251,61471366) （CYS14204）
The Graduated Student Innovation Program of Chongqing(CYS14204) （CYS14204）
