On Selfish and Altruistic Coalition Formation in Cognitive Radio Networks
Citation:
Z. Khan, J. Lehtomaki, M. Latva-Aho, and L. A. DaSilva, On Selfish and Altruistic Coalition Formation in Cognitive Radio Networks, 5th Intl. Conf. on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), Cannes, France, June 9-11, 2010, 1 - 5Download Item:
Khan_CROWNCOM_2010.pdf (Published (publisher's copy) - Peer Reviewed) 130.2Kb
Abstract:
We formulate the sensing-throughput tradeoff problem for distributed cognitive radio (CR) networks as a coalition
formation game. Formation of coalitions enables the CRs to
increase their achievable throughput, under the detection probability constraint, while also taking into account the overhead
in sensing reports combining. In the proposed game, CRs form
coalitions either to increase their individual gains (sel?sh coalition
formation) or to maximize the overall gains of the group (altruistic coalition formation). We ?nd that the altruistic coalition
formation solution yields signi?cant gains in terms of reduced
average false alarm probability and increased average throughput
per CR as compared to the sel?sh and non-cooperative solutions.
Given a target detection probability for a coalition, we also
propose an SNR dependent target detection probability for
individual CRs in a coalition and analyze its impact on the
average throughput per CR. Finally, we also analyze the impact
of the cost of distributed cooperative sensing on the cooperative
strategies of CRs.
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Author: DA SILVA, LUIZ
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