Coexistence in heterogeneous spectrum through distributed correlated equilibrium in cognitive radio networks

8 years 25 days ago

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Coexistence protocols enable collocated cognitive radio networks (CRNs) to share the spectrum in an opportunistic manner. These protocols work under the assumption that all spectrum bands provide the same level of throughput. This assumption is however limited in scope because channel conditions as well as the licensee’s usage of allocated channels can vary signiﬁcantly with time and space. Under these circumstances, CRNs are expected to have a preference over the choice of available channels which can lead to an imbalance in contention for disparate channels, degraded quality of service, and an overall ineﬃcient utilization of spectrum resource. In this paper, we analyze this situation from a game theoretic perspective and model the coexistence of CRNs with heterogeneous spectrum as a non-cooperative, repeated spectrum sharing game. We derive three solutions for the game; 1) pure and 2) mixed strategy Nash Equilibria as well as 3) centralized and distributed correlated equilibr...

Muhammad Faisal Amjad, Mainak Chatterjee, Cliff C.

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