A bandwidth efficient two-user cooperative diversity system with limited feedback

被引：6
|
作者：
Li Jing [1 ]
Ge JianHua [1 ]
Wang Yong [1 ,2 ]
Tang YunShuai [1 ]
Xiong Xiong [1 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
[2] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
来源：
SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES | 2009年 / 52卷 / 06期
基金：
中国国家自然科学基金;
关键词：
cooperative diversity; Alamouti signaling; selection decode-and-forward (SDF); M-PSK; bit-error-rate (BER); PERFORMANCE ANALYSIS; WIRELESS NETWORKS; SELECTION; PROTOCOLS;
D O I：
10.1007/s11432-009-0104-y
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A two-user cooperative diversity system based on Alamouti signaling was proposed, which utilizes the orthogonal structure of Alamouti signaling to make cooperative users relay on the shared channel resources so that the spectral efficiency of the traditional cooperative system can be improved. When M-ary phase shift keying (M-PSK) modulation and an improved selection decode-and-forward (SDF) relaying protocol with limited feedback are used at the users and m(m a (c) 3/41) receive antennas are configured at the base station, the average bit-error-rate (BER) system performance for statistically similar uplink channels was derived and it was verified by simulations. Under various channel scenarios of interest, numerical and simulation results show that the diversity gain achieved and the BER performance of the proposed system increase with the interuser channel quality, and the full transmit diversity order of two can be obtained for sufficiently high interuser signal-to-noise ratios (SNRs).
引用
收藏
页码：1055 / 1066
页数：12
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