Utility Maximization with Packet Collision Constraint in Cognitive Radio Networks

Nguyen H. TRAN  Choong Seon HONG  Sungwon LEE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.1   pp.321-324
Publication Date: 2012/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.321
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
utility maximization,  rate control and resource allocation,  cognitive radio networks,  

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Summary: 
We study joint rate control and resource allocation with a packet collision constraint that maximizes the total utility of secondary users in cognitive radio networks. We formulate and decouple the original optimization problem into separable subproblems and then develop an algorithm that converges to optimal rate control and resource allocation. The proposed algorithm can operate on different time-scales to reduce the amortized time complexity.