NDLI: Joint relay selection and power allocation in energy harvesting AF relay systems with ICSI

Content Provider	IET Digital Library
Author	Zhang, Yangyang Ge, Jianhua Men, Jinjin Ouyang, Fengchen Zhang, Chensi
Abstract	In various wireless networks, power allocation scheme promises significant benefits in energy harvesting (EH) wireless networks. However, these benefits depend on the knowledge of the channel state information (CSI), which is hardly perfect. Therefore, in this study, the authors investigate an EH two-way relaying network with channel estimation error taking into consideration. First, the system outage performance is studied and closed-form expressions for the outage probability are derived. On the basis of minimising the outage probability, an optimal power allocation (OPA) scheme is proposed and the effective ways to solve this OPA scheme are presented. In addition, a joint relay selection and the OPA scheme is provided to further improve the system performance. Finally, by comparing the OPA scheme with conventional power allocation schemes via simulations, the superiority of the OPA scheme is demonstrated. Moreover, the impact of imperfect CSI on the system performance is analysed and the simulation results show the robustness of the OPA scheme.
Starting Page	1656
Ending Page	1661
Page Count	6
ISSN	17518725
Volume Number	10
e-ISSN	17518733
Issue Number	Issue 15, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/10/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0028
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2016-12-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication Channel Estimation Channel Estimation Error Channel State Information Closed-form Expression Communication Channel Equalisation And Identification EH Wireless Network Energy Harvesting Energy Harvesting AF Relay System Error Statistics ICSI Imperfect CSI Joint Relay Selection OPA Scheme Optimal Power Allocation Scheme Outage Probability Radio Link And Equipment Relay Network Statistics Telecommunication Two-way Relaying Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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