Distributed Concatenated Alamouti Codes for Two-Way Relaying Networks

被引：25
作者：
Gong, Feng-Kui [1 ,2 ]
Zhang, Jian-Kang [3 ]
Ge, Jian-Hua [2 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4L8, Canada
[2] Xidian Univ, State Key Lab ISN, Xian 710071, Shaanxi Provinc, Peoples R China
[3] McMaster Univ, Dept Elect & Comp Engn, 1280 Main St West, Hamilton, ON L8S 4K1, Canada
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2012年 / 1卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Two-way relaying network; distributed concatenated Alamouti STBC; symbol error probability; diversity gain; USER COOPERATION DIVERSITY; PROTOCOLS; CHANNELS; SYSTEM;
D O I：
10.1109/WCL.2012.031512.120068
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this letter, we consider a half-duplex amplify-and-forward two-way relaying network consisting of two sources with each having a single antenna and one relay having two antennas. For such a system, a distributed orthogonal space-time block code (STBC) is proposed by making use of the Alamouti coding scheme and jointly processing the signals from the two antennas at the relay node. Such a code turns out to make the equivalent channel at each source node be a product of the two Alamouti channels and thus, is called distributed concatenated Alamouti STBC. In addition, the asymptotic formula of exact symbol error probability (SEP) for a quadrature amplitude modulation (QAM) constellation with the maximum likelihood (ML) detector is derived. This result shows that the full diversity gain function is achieved and proportional to ln SNR/SNR2.
引用
收藏
页码：197 / 200
页数：4
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