Joint scheduling and cooperative sensing in cognitive radios: A game theoretic approach

Chunhua Sun, Wei Chen, Khaled Letaief

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

11 Citations (Scopus)

Abstract

In cognitive radio systems, cooperative spectrum sensing in the physical layer is highly desired to detect the primary user accurately and to guarantee the quality of service (QoS) of the primary user. Due to the energy consumption in sensing the channels, the selfish users may not be willing to contribute to the cooperative sensing while they want to occupy more idle channels observed. To deal with this problem, we propose in this paper a game theoretic approach which will advocate users to spend power to sense the channel by using the access opportunity in the MAC layer as a payoff. In this protocol, the users who sense the channel are given higher priority to access the idle channel and meanwhile, the multiuser diversity in the MAC layer is exploited to increase the throughput for cognitive systems. The expressions for the average throughput and consumed power for a single user will be derived and then Nash equilibrium will be studied for the game model. It will be shown that the game will be characterized by the prisoner's dilemma. To guarantee the fairness and achieve higher throughput, we will design an evolutionary game protocol in which the Nash equilibrium can be dynamically changed based on the behaviors of cognitive users. Simulation results will show that the proposed protocol can achieve fairness and efficiency for cognitive users.

Original languageEnglish
Title of host publication2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Budapest, Hungary
Duration: 5 Apr 20098 Apr 2009

Other

Other2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
CountryHungary
CityBudapest
Period5/4/098/4/09

Fingerprint

Cognitive radio
Scheduling
Throughput
Cognitive systems
Radio systems
Quality of service
Energy utilization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Sun, C., Chen, W., & Letaief, K. (2009). Joint scheduling and cooperative sensing in cognitive radios: A game theoretic approach. In 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings [4917774] https://doi.org/10.1109/WCNC.2009.4917774

Joint scheduling and cooperative sensing in cognitive radios : A game theoretic approach. / Sun, Chunhua; Chen, Wei; Letaief, Khaled.

2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings. 2009. 4917774.

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

Sun, C, Chen, W & Letaief, K 2009, Joint scheduling and cooperative sensing in cognitive radios: A game theoretic approach. in 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings., 4917774, 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009, Budapest, Hungary, 5/4/09. https://doi.org/10.1109/WCNC.2009.4917774
Sun C, Chen W, Letaief K. Joint scheduling and cooperative sensing in cognitive radios: A game theoretic approach. In 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings. 2009. 4917774 https://doi.org/10.1109/WCNC.2009.4917774
Sun, Chunhua ; Chen, Wei ; Letaief, Khaled. / Joint scheduling and cooperative sensing in cognitive radios : A game theoretic approach. 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings. 2009.
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