Cooperative game-theoretic modeling for spectrum sensing in cognitive radios

Jayaprakash Rajasekharan*, Jan Eriksson, Visa Koivunen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)


This paper addresses the problem of spectrum sharing in cognitive radios where secondary users cooperatively sense the spectrum for identifying and accessing unoccupied spectrum bands. It is shown that this scenario can be modeled as a cooperative game to allocate spectrum resources fairly to each user. Users form coalitions to jointly sense and share the spectrum. The worth of each user is calculated according to the work done for the coalition in terms of the information obtained about primary user activity from sensing the spectrum. The resulting games are balanced, thereby ensuring non-empty cores for allocating resources to users. The games are also convex, thus enabling one-point solution concepts such as the Shapley value, tau value and nucleolus to lie within the core to provide stability. The concept and results are illustrated using a simple toy example.

Original languageEnglish
Title of host publicationConference Record of the 44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010
Number of pages5
Publication statusPublished - 2010
MoE publication typeA4 Article in a conference publication
EventAsilomar Conference on Signals, Systems & Computers - Pacific Grove, United States
Duration: 7 Nov 201010 Nov 2010
Conference number: 44

Publication series

NameConference Record of the Asilomar Conference on Signals Systems and Computers
ISSN (Print)1058-6393


ConferenceAsilomar Conference on Signals, Systems & Computers
Abbreviated titleASILOMAR
CountryUnited States
CityPacific Grove

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