Joint Power Allocation and Relay Selection in Energy Harvesting AF Relay Systems

Author

Ahmed, Ishtiaq ; Ikhlef, A. ; Schober, Robert ; Mallik, Ranjan K.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada

Volume

2

Issue

2

fYear

2013

fDate

Apr-13

Firstpage

239

Lastpage

242

Abstract

In this letter, we propose joint relay selection and power allocation schemes for maximization of the throughput of an amplify-and-forward (AF) cooperative communication system where the source and the relays are energy harvesting (EH) nodes. We formulate an offline optimization problem which can be solved optimally by the generalized Bender´s decomposition. For real-time implementation with low computational complexity, we propose two suboptimal online power allocation schemes. The performance of the proposed schemes is evaluated via simulations.

Keywords

amplify and forward communication; cooperative communication; energy harvesting; amplify and forward cooperative communication; computational complexity; energy harvesting AF relay systems; energy harvesting nodes; generalized Bender decomposition; maximization; offline optimization problem; relay selection; suboptimal online power allocation; Batteries; Energy harvesting; Joints; Optimization; Relays; Resource management; Wireless communication; Energy harvesting; generalized Bender´s decomposition; power allocation; relay selection;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/WCL.2013.012513.130007

Filename

6425377