A novel approach to spectrum management in cognitive radio networks using agent coalition formation Online publication date: Mon, 14-Sep-2015
by Fatima Zohra Benidris; Badr Benmammar; Francine Krief
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 9, No. 1, 2015
Abstract: Cognitive radio (CR) is a novel technology which uses an open spectrum allocation technique to make more efficient utilisation of the wireless radio spectrum and reduces the bottleneck on the frequency bands. In this paper, we develop a novel approach for spectrum allocation using a multiagent system method based on coalition that enables secondary user devices to work cooperatively with their neighbouring primary user devices. The fundamental aspect of our solution is the deployment of an agent on each device and these agents are grouped into coalitions where the powerful node is selected to be a leader. The leader of secondary user's coalition organises the allocation requests based on their priorities using scheduling heuristics while the leader of primary user's coalition handles the proposals for spectrum sharing. The simulation results confirm the intelligent management and the good performance of our approach.
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