Paper Info
Title
Energy-Efficient Design in RF Energy Harvesting Relay Networks.
Abstract
In this paper, the energy-efficient design of wireless relay networks with radio frequency (RF) energy harvesting capability is studied. A decode-and-forward relay is used to forward information and harvest energy simultaneously from the same signal with a power splitting architecture. Given the power and quality-of-service constraints, a non-convex energy-efficient optimization problem is formulated, in which the transmit power and power splitting ratio are coupled together. With our proposed algorithm, the problem is decoupled and solved. The question of when RF energy harvesting relay is preferred is also discussed. Simulation results demonstrate that the proposed algorithm improves the energy efficiency over the power allocation scheme for capacity maximization. The RF energy harvesting relay is shown to be preferred over the direct transmission when the environmental noise level is high.
Year
DOI
Venue
2015
10.1109/GLOCOM.2015.7417800
IEEE Global Communications Conference
Field
DocType
ISSN
Wireless,Transmitter power output,Telecommunications,Computer science,Efficient energy use,Quality of service,Energy harvesting,Real-time computing,Radio frequency,Electronic engineering,Optimization problem,Relay
Conference
2334-0983
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Shengjie Guo1193.31
Xiangwei Zhou245135.87