An evolutionary game theory-based channel access mechanism for wireless multimedia sensor network with rate-adaptive applications

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• 作者：Jiang Zhu ; Dingde Jiang ; Ying-hui Yuan ; Fang-wei Li
• 关键词：Wireless multimedia sensor network ; Channel access mechanism ; Evolutionary game theory ; Dynamic equation ; Nash equilibrium
• 刊名：Multimedia Tools and Applications
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：75
• 期：22
• 页码：14329-14349
• 全文大小：1,767 KB
• 刊物类别：Computer Science
• 刊物主题：Multimedia Information Systems
  Computer Communication Networks
  Data Structures, Cryptology and Information Theory
  Special Purpose and Application-Based Systems
  
• 出版者：Springer Netherlands
• ISSN：1573-7721
• 卷排序：75

文摘

Wireless multimedia sensor networks are involved with rate-adaptive applications, such as video, audio and image, therefore, high bandwidth or throughput is demanded. To maximize the system throughput of the network, a channel access mechanism based on evolutionary game is proposed. Under the mechanism, users are assumed to be bounded rationality, in order to coordinate users’ behavior in distributed manner, a new reward function is deduced. On the basis of the reward function, a dynamic channel access algorithm and corresponding dynamic equation are designed for the mechanism, which converge to Nash Equilibrium with faster speed. Theoretical analysis and simulation results show that the reward function proposed can realize the maximization of system throughput and higher normalized utilities of users under the framework of evolutionary game, and the corresponding dynamic equation is globally asymptotically stable, besides, when user deviates because of bounded rationality, the dynamic equation is still able to guarantee faster convergence and smaller performance deviation.