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Browse Journals & Magazines > Electronics Letters ...> Volume:46 Issue:23 Help

Joint power and channel allocation for energy-efficient performance of relay-assisted cognitive radio networks based on energy pricing

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5 Author(s)
Zhang, G.Y. ; Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China ; Hu, Z. ; Wang, C.R. ; Li, G.Y.
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In a cooperative relay scenario with multiple spectrum bands, modelling the nodes of a network as energy sellers, a joint power and channel allocation scheme based on energy pricing is proposed for parallel-transmission to extend the lifetime of the cooperative network by considering variant transmit power and spectrum availability. The optimal power allocation solutions between the source node and the relay node are obtained by a dual-based optimal power schedule algorithm, and the end-to-end throughput of parallel-transmission is fulfilled with minimum system cost (MSC) criteria. The superiority of the MSC scheme over other schemes has been verified by quantitative results.

Published in:
Electronics Letters  (Volume:46 ,  Issue: 23 )

Date of Publication: November 11 2010

Page(s):
1571 - 1573
ISSN :
0013-5194
INSPEC Accession Number:
11630217
Digital Object Identifier :
10.1049/el.2010.2359
Product Type:
Journals & Magazines
Date of Current Version :
15 November 2010
Issue Date :
November 11 2010
Sponsored by :
Institution of Engineering and Technology

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