Paper Info
Title
Joint Optimal Power Allocation and Relay Selection Scheme in Energy Harvesting Two-Way Relaying Network.
Abstract
In this paper, we propose a joint power allocation, time switching (TS) factor and relay selection scheme for an energy harvesting two-way relaying communication network (TWRN), where two transceivers exchange information with the help of a wireless-powered relay. By exploiting the TS architecture at the relay node, the relay node needs to use additional time slots for energy transmission, reducing the transmission rate. Thus, we propose a joint resource allocation algorithm to maximize the max-min bidirectional instantaneous information rate. To solve the original non-convex optimization problem, the objective function is decomposed into three sub-problems and solved sequentially. The closed-form solution of the transmit power of two sources and the optimal TS factor can be obtained by the information rate balancing technology and the proposed time allocation scheme, respectively. At last, the optimal relay node can be obtained. Simulation results show that the performance of the proposed algorithm is better than the traditional schemes and power-splitting (PS) scheme.
Year
DOI
Venue
2019
10.3390/fi11020047
FUTURE INTERNET
Keywords
Field
DocType
energy harvesting,two-way relaying network,max-min bidirectional information rate,power allocation,relay selection
Mathematical optimization,Telecommunications network,Transmitter power output,Code rate,Computer science,Time allocation,Energy harvesting,Computer network,Electric power transmission,Optimization problem,Relay
Journal
Volume
Issue
ISSN
11
2
1999-5903
Citations 
PageRank 
References 
1
0.36
16
Authors
4
Name
Order
Citations
PageRank
Xin Song11515.82
Siyang Xu210.36
Zhigang Xie310.36
Xiuwei Han410.70