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This article investigates the problem of distributed channel selection in opportunistic spectrum access (OSA) system in which the channel states varying from slot to slot due to the influence of fading. The existing work considering with timevarying environment supposed users can receive a reward after successful contention of a channel. This assumption is not conformed to the realistic dynamic channel...
This paper investigates the problem of distributed channel selection for interference mitigation in cognitive radio networks (CRNs) with block-fading channels, using a game-theoretic solution. Specifically, the channel gains are block-fixed in a slot and change randomly in the next slot. Existing algorithms, which are originally designed for static channels, can not converge in the presence of time-varying...
Opportunistic spectrum access (OSA) has been regarded as the most promising approach to solve the paradox between spectrum scarcity and waste. Intelligent decision making is key to OSA and differentiates it from previous wireless technologies. In this article, a survey of decision-theoretic solutions for channel selection and access strategies for OSA system is presented. We analyze the challenges...
This paper investigates the problem of distributed channel selection for cognitive radio networks, where mutual inference only occurs among nearby users, using a game based solution. Firstly, we propose a local congestion game, in which the utility function is determined by its own channel selection and the channel selection profile of its neighboring users. The game is proved to be a potential game...
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