Paper Info
Title
Qos-Aware Joint Power Allocations And Relay Selection For Nlos Coherent Optical Wireless Communications
Abstract
In order to improve the energy efficiency of the optical wireless communications, a joint power allocation and relay selection scheme is proposed for a relay assisted non-line-of-sight optical wireless communication system employing coherent detection with a dual optical channel multiplexing technique. The proposed joint power allocation and relay selection scheme aims to improve energy efficiency of the optical wireless communication system by minimizing the total average transmit power, and provides the delay aware quality-of-service guarantee through maintaining a minimum required effective capacity over the atmospheric turbulence fading channels. The joint power allocation and relay selection problem is formulated as a non-convex and combinatorial optimization problem, and the solution of this optimization problem is obtained using a time-sharing relaxation technique. Subsequently, a fast-convergent algorithm is proposed for the joint power allocation and relay selection by considering the delay aware quality-of-service requirements of the services transmitted over the optical wireless communication channels. Numerical results demonstrate the advantages of the proposed joint power allocation and relay selection scheme in terms of the energy saving for different statistical delay constraints.
Year
DOI
Venue
2016
10.1109/ICC.2016.7510825
2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
Field
DocType
ISSN
Relay channel,Transmitter power output,Fading,Computer science,Computer network,Communications system,Optical performance monitoring,Optical wireless,Optical wireless communications,Relay
Conference
1550-3607
Citations 
PageRank 
References 
1
0.34
6
Authors
4
Name
Order
Citations
PageRank
Md. Zoheb Hassan1214.95
Victor C. M. Leung29717759.02
Md. Jahangir Hossain333241.63
Julian Cheng41409145.12