Paper Info
Title
On outage minimization in RF energy harvesting relay assisted bidirectional communication
Abstract
This paper explores an end-to-end outage probability experienced in a bidirectional relay assisted communication where the relay is assumed to be equipped with an RF energy harvesting circuit. First, the closed-form expression for the outage of the system is derived. This is followed by the formulation of an unconstrained optimization problem to achieve minimum outage probability with respect to the relay placement and consequent time allocation for energy harvesting. The system model is further extended in an underlay cognitive radio framework to study the impact of a primary user outage constraint on the end-to-end outage performance of the two-way communications. The accuracy of analytical results is validated through simulation results. The impact of various system parameters like relay position, time allocation factor, target rate of transmission on the outage probability is also observed. In addition, it is also shown that spectral efficiency of the communication system using hybrid power-time switching relaying protocol is much superior to similar one-way and two-way relay assisted communication system with power splitting relaying protocol.
Year
DOI
Venue
2019
10.1007/s11276-018-01924-1
Wireless Networks
Keywords
Field
DocType
Energy harvesting, Simultaneous wireless information and power transfer, Outage performance, Two way half-duplex relaying
Computer science,Time allocation,Communications system,Computer network,Energy harvesting,Electronic engineering,Minification,Spectral efficiency,Optimization problem,System model,Relay
Journal
Volume
Issue
ISSN
25.0
SP7.0
1572-8196
Citations 
PageRank 
References 
1
0.35
23
Authors
3
Name
Order
Citations
PageRank
Sutanu Ghosh163.16
Tamaghna Acharya212619.53
Santi P. Maity340350.37