Opportunistic Spectrum Access for CR-VANETs: A Game-Theoretic Approach
作者： Nan Cheng , Ning Zhang , Ning Lu , Xuemin Shen , Jon W. Mark
关键词:
摘要: In this paper, we investigate the opportunistic spectrum access for cognitive radio vehicular ad hoc networks. The probability distribution of channel availability is first derived through a finite-state continuous-time Markov chain, jointly considering mobility vehicles and spatial temporal usage pattern primary transmitters. Utilizing statistics, propose game-theoretic scheme to opportunistically licensed channels in distributed manner. particular, process modeled as noncooperative congestion game. existence Nash equilibrium (NE) proved, its efficiency analyzed when employing uniform medium control protocol slotted ALOHA, respectively. Furthermore, algorithm devised achieve pure NE with high fairness. Simulation results validate our analysis demonstrate that proposed can higher utility fairness, compared random scheme.
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