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In this paper, we study the relay assignment problem in cooperative wireless networks with self-interested nodes. Such systems should be organized from the point of view of efficiency, stable and providing consistent incentives to all nodes. We propose a cooperation mechanism which includes the cooperative relationship formation stage and cooperation maintenance stage. The cooperative relationship...
The game of collaborative spectrum sensing is discussed for cognitive radio systems, in which an honest secondary user collaborates with an unclassified secondary user. The honest secondary user needs to determine its trustiness to the collaborator while the collaborator, if being malicious, needs to find the optimal tradeoff between causing more damage to the honest secondary user and hiding its...
Wireless voice over IP (VoIP) is subject to unpredictable link conditions which directly contribute to user irritation. Standard technological means available to the network provider to remedy wireless link problems require additional radio resources to be allocated. Given that radio resource is limited, it is not clear whether such allocation strategies to reduce user irritation are economically...
Competitive spectrum access is studied for cognitive radio networks. Based on the assumption of rational secondary users, the spectrum access is modeled as a graphical game, in which the payoff of a secondary user is dependent on only other secondary users that can cause significant interference. The Nash equilibrium in the graphical game is computed by minimizing the sum of regrets. To alleviate...
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