Resource allocation in cooperative cognitive radio networks towards maritime cyber physical systems

In this paper, an innovative framework labeled as cooperative cognitive Cyber Physical Systems (CCCPSs) on the sea is developed to provide opportunistic channel access. Specifically, a two-phase frame structure is applied to let Secondary users (SUs) entirely utilize the transmission opportunities for a portion of time as the reward by cooperation with Primary users (PUs). Amplify-and-forward (AF) relaying mode is exploited in SU nodes, and Backward induction method based Stackelberg game is employed to achieve optimal determination of SU, power consumption and time portion for cooperation. Close-form solutions for the best access time portion βi to SUi as well as the power P2i for SUi are derived to realize the Nash Equilibrium. Simulation results validate the effectiveness of our proposed strategy.

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