DocumentCode
1359457
Title
Simplified Relay Selection and Power Allocation in Cooperative Cognitive Radio Systems
Author
Li, Liying ; Zhou, Xiangwei ; Xu, Hongbing ; Li, Geoffrey Ye ; Wang, Dandan ; Soong, Anthony
Author_Institution
Sch. of AE, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume
10
Issue
1
fYear
2011
fDate
1/1/2011 12:00:00 AM
Firstpage
33
Lastpage
36
Abstract
In this paper, we investigate joint relay selection and power allocation to maximize system throughput with limited interference to licensed (primary) users in cognitive radio (CR) systems. As these two problems are coupled together, we first develop an optimal approach based on the dual method and then propose a suboptimal approach to reduce complexity while maintaining reasonable performance. From our simulation results, the proposed approaches can increase the system throughput by over 50%.
Keywords
cognitive radio; power electronics; cooperative cognitive radio system; joint relay selection; power allocation; simplified relay selection; system throughput; Cognitive radio; Interference; Relays; Resource management; Simulation; Throughput; Cooperative cognitive radio system; power allocation; relay selection; system throughput;
fLanguage
English
Journal_Title
Wireless Communications, IEEE Transactions on
Publisher
ieee
ISSN
1536-1276
Type
jour
DOI
10.1109/TWC.2010.101810.100311
Filename
5608475
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