Asymptotic SEP Analysis of Two-Way Relaying Networks With Distributed Alamouti Codes

被引：5
|
作者：
Gong, Feng-Kui [1 ]
Zhang, Jian-Kang [2 ]
Ge, Jian-Hua [1 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
[2] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4K1, Canada
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2012年 / 61卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Amplify and forward (AF); distributed Alamouti space-time block code (DASTC); half-duplex two-way relaying networks; symbol error probability (SEP); AMPLIFY-AND-FORWARD; USER COOPERATION DIVERSITY; PERFORMANCE ANALYSIS; SYSTEM; PROTOCOLS; CHANNELS;
D O I：
10.1109/TVT.2012.2210060
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：
Asymptotic symbol error probability (SEP) performance with an optimal maximum likelihood (ML) receiver and square quadrature amplitude modulation (QAM) constellations is investigated for two-way amplify-and-forward (AF) half-duplex relaying networks employing distributed Alamouti space-time block codes (DASTCs) recently proposed by Duong et al. By developing a novel strategy to particularly deal with some specific Gaussian integrals, two asymptotic SEP formulas are derived for both fixed-and variable-gain AF protocols. These analytic results reveal that, when the signal-to-noise ratio (SNR) is large, the diversity gain for the variable-gain AF is 2, whereas the diversity gain function for the fixed-gain AF is proportional to SNR-2 ln SNR.
引用
收藏
页码：3777 / 3783
页数：7
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