Wireless powered cooperative communications with direct links over correlated channels

被引：12
作者：
Deng, Dan [1 ]
Yu, Minghui [1 ]
Xia, Junjuan [2 ]
Na, Zhenyu [3 ]
Zhao, Junhui [4 ]
Yang, Qinghai [5 ]
机构：
[1] Guangzhou Panyu Polytech, Guangzhou 511483, Guangdong, Peoples R China
[2] GuangZhou Univ, Guangzhou 510006, Guangdong, Peoples R China
[3] Dalian Maritime Univ, Sch Informat Sci & Technol, Dalian 116026, Peoples R China
[4] East China Jiaotong Univ, Sch Informat Engn, Nanchang, Jiangxi, Peoples R China
[5] Xidian Univ, Sch Telecommun Engn, State Key Lab ISN, Xian 710071, Shaanxi, Peoples R China
来源：
PHYSICAL COMMUNICATION | 2018年 / 28卷
关键词：
Energy harvesting; Cooperative system; Correlated channels; Selection combination; Outage probability; INTERFERENCE ALIGNMENT NETWORKS; RADIATIVE THERMAL-PROPERTIES; PHYSICAL-LAYER SECURITY; RELAY SELECTION; FADING CHANNELS; FIBROUS INSULATIONS; INFORMATION; SYSTEMS; PERFORMANCE; OPTIMIZATION;
D O I：
10.1016/j.phycom.2018.03.013
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：
In this paper, we investigate the impact of correlated channels on the wireless powered cooperative networks, where the direct links between the source and destination exist and are correlated with the relaying links. In the considered system, the time switching-based relaying protocol of simultaneous wireless information and power transfer is used. In order to enhance the system performance, a better branch between the relaying link and the direct link is selected. We evaluate the system transmission performance by deriving the closed-form expression on outage probability as well as the asymptotic results for the proposed scheme, in the high regime of transmit power. Based on the theoretical analysis, we investigate the effects of the system parameters, such as channel correlation coefficient, average channel fading power, energy harvesting coefficient and slot allocation coefficient, on the system outage probability. Numerical results are provided to verify the theoretical analysis. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 153
页数：7
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