Distributed Differential Quasi-Orthogonal Space-Time Block Coded System for Multiple-Relay Networks

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• 作者：Soonki Jo ; Jae-Shin Han ; Sugnho Jeon ; Jeong-Min Choi…
• 关键词：Amplify ; and ; forward ; Differential space ; time block code ; Quasi ; orthogonal space ; time block code
• 刊名：Wireless Personal Communications
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：87
• 期：4
• 页码：1401-1414
• 全文大小：932 KB
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Signal,Image and Speech Processing
  Processor Architectures
  
• 出版者：Springer Netherlands
• ISSN：1572-834X

文摘

In this paper, we present an efficient distributed differential quasi-orthogonal space-time block code (DD-QOSTBC) system for multiple relay networks. First, we propose the DD-QOSTBC transmission which considers two robust STBC-like subsystems in amplify-and-forward multiple relaying over flat fading channel. It is assumed that source has two antennas, and relays and destination have a single antenna. With robust STBC-like subsystem structure, we show that our robust subsystems can be used for an efficient joint suboptimal differential decoding based on a maximum likelihood criterion. Finally, we accomplish the performance evaluation on the proposed DD-QOSTBC system in terms of bit-error-rate.