Price-based spectrum management in cognitive radio networks

Fan Wang, Marwan Krunz, Shuguang Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

A key challenge in operating cognitive radios (CRs) in a self-organizing (ad hoc) network is how to adaptively and efficiently allocate transmission powers and spectrum among CRs according to the surrounding environment. Most previous works address this issue via heuristic approaches or using centralized solutions. In this paper, we present a novel joint power/channel allocation scheme that uses a distributed pricing strategy to improve the network's performance. In this scheme, the spectrum allocation problem is modelled as a non-cooperative game. A price-based iterative water-filling (PIWF) algorithm is proposed, which allows users to converge to the Nash Equilibrium (NE). This PIWF algorithm can be implemented distributively with CRs repeatedly negotiating their best transmission powers and spectrum. Simulation results show that the social optimality of the NE solution is dramatically improved with our price-based strategy. Based on the orders by which CRs take actions, we study sequential and parallel versions of the algorithm. We show that the parallel version converges faster than the sequential version.

Original languageEnglish (US)
Title of host publicationProceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom
Pages70-78
Number of pages9
DOIs
StatePublished - Dec 1 2007
Event2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom - Orlando, FL, United States
Duration: Aug 1 2007Aug 3 2007

Publication series

NameProceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom

Other

Other2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom
CountryUnited States
CityOrlando, FL
Period8/1/078/3/07

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ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Human-Computer Interaction
  • Communication

Cite this

Wang, F., Krunz, M., & Cui, S. (2007). Price-based spectrum management in cognitive radio networks. In Proceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom (pp. 70-78). [4549775] (Proceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom). https://doi.org/10.1109/CROWNCOM.2007.4549775