NDLI: Two-way relay networks with wireless power transfer: design and performance analysis

Content Provider	IET Digital Library
Author	Liu, Yuanwei Wang, Lifeng Elkashlan, Maged Duong, Trung Q. Nallanathan, Arumugam
Abstract	This study considers amplify-and-forward two-way relay networks, where an energy constrained relay node harvests energy from the received radio-frequency signal. Based on time switching receiver, they separate the energy harvesting (EH) phase and the information processing (IP) phase in time. In the EH phase, three practical wireless power transfer policies are proposed: (i) dual-source (DS) power transfer, where both sources transfer power to the relay; (ii) single-fixed-source power transfer, where a fixed source transfers power to the relay; and (iii) single-best-source (SBS) power transfer, where a source with the strongest channel transfers power to the relay. In the IP phase, a new comparative framework of the proposed wireless power transfer policies is presented in two bi-directional relaying protocols, known as multiple access broadcast (MABC) and time division broadcast (TDBC). To characterise the performance of the proposed policies, new analytical expressions are derived for the outage probability, the throughput, and the system energy efficiency. Numerical results corroborate the authors’ analysis and show: (i) the DS policy performs the best in terms of both outage probability and throughput among the proposed policies, (ii) the TDBC protocol achieves lower outage probability than the MABC protocol, and (iii) there exits an optimal value of EH time fraction to maximise the throughput.
Starting Page	1810
Ending Page	1819
Page Count	10
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 14, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0728
Journal	IET Communications
Publisher Date	2016-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Access Protocols Amplify And Forward Communication Amplify And Forward Network Bidirectional Relaying Protocol Broadcast Communication Dual Source Power Transfer Energy Harvesting Multiple Access Broadcast Protocol Network Throughput Outage Probability Protocol Radio Frequency Power Transmission Radio Link And Equipment Received Radio Frequency Signal Relay Network Single Best Source Power Transfer Single Fixed Source Power Transfer Telecommunication Telecommunication Power Management Time Division Broadcast Protocol Two Way Relay Network Two-way Relay Network Wireless Power Transfer System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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