Quality of service aware antenna selection scheme for multi-hop relay networks

被引：2
|
作者：
Murugadass, Arthi [1 ]
Pachiyappan, Arulmozhivarman [1 ]
Kumaravelu, Vinoth Babu [1 ]
George, Emy Mariam [1 ]
机构：
[1] VIT Univ, Sch Elect Engn, Vellore, Tamil Nadu, India
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2017年 / 71卷
关键词：
Antenna selection; Delayed channel quality information (CQI); Multi-hop relay (MHR); Multi input multi output (MIMO); M-ary quadrature amplitude modulation (M-QAM); Symbol error probability (SEP); SUBSET-SELECTION; MIMO-SYSTEMS; PERFORMANCE ANALYSIS; TRANSMIT; CAPACITY; CHANNELS; FEEDBACK; ALGORITHMS; COMPLEXITY; DESIGN;
D O I：
10.1016/j.aeue.2016.11.001
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：
Multi input multi output (MIMO) based multi-hop relay (MHR) networks has become one of the promising technologies in improving the quality of wireless links. The optimal antenna selection is one of the suitable solutions to overcome the limitations of MIMO scheme. To attain the full benefits of transmitter antenna selection schemes, perfect channel quality information (CQI) is required at the transmitter. The time varying channel and the feedback delay make CQI at the transmitter outdated and also affect the antenna selection process. In this work, we have derived the symbol error probability (SEP) of M-ary quadrature amplitude modulation (QAM) for three different antenna selection schemes by considering the effect of delayed CQI. All these derived expressions are the function of correlation between CQI at the receiver and delayed CQI at the transmitter. The simulation results show that the antenna selection gain decreases with the decrease in correlation. It is also observed that scheme 1 based antenna selection is optimal for different constellations and more suited for MHR network. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：9 / 20
页数：12
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