Relay Selection in Non-coherent AF MIMO-OFDM Relay-Assisted Systems with OSTBC

被引：3
|
作者：
Banar, Mohsen [1 ]
Mohammadi, Abbas [1 ]
机构：
[1] Amirkabir Univ Technol, Dept Elect Engn, Radio Commun Excellence, Micro Mm Wave & Wireless Commun Lab MMWCL, Tehran, Iran
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2015年 / 82卷 / 02期
关键词：
End-to-end outage performance; Non-coherent amplify-and-forward; Orthogonal space-time block codes (OSTBC); Rayleigh fading; Relay-assisted MIMO-OFDM system; Rician fading; TIME BLOCK-CODES; PERFORMANCE ANALYSIS; COOPERATIVE OFDM; SCHEMES; DESIGN;
D O I：
10.1007/s11277-014-2263-4
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper investigates the relay selection in non-coherent amplify-and-forward relay-assisted MIMO-OFDM system with orthogonal space-time block coding transmission. We propose three relay selection schemes. The best relay is selected based on OFDM subcarrier, OFDM symbol, and block. In this analysis, the source-relay and relay-destination channels are considered as Rayleigh fading and Rician fading, respectively. Exact closed-form expressions for end-to-end outage probability of all proposed schemes are derived. Furthermore, these schemes are studied in high SNR and also the diversity order and power gain are obtained. In addition, we showed that the selecting best relay among the multiple relay causing performance improvement. Moreover, this performance improvement will be greater with increasing the number of relays.
引用
收藏
页码：1013 / 1025
页数：13
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