基于博弈论的机会网络激励机制的研究

发布时间：2018-03-16 02:19

本文选题：机会网络　切入点：自私节点　出处：《计算机应用研究》2015年07期 　论文类型：期刊论文

【摘要】：机会网络是一种新型的网络,具有频繁的网络断开、高误码率、随机的拓扑变化等特点,该网络中的消息传播是依靠节点间的合作来完成存储—携带—转发的模式。由于能量、缓存以及处理能力的限制,一些节点表现出自私(拒绝帮助其他节点转发消息),甚至恶意(高报价)的特性,所以会给网络性能带来巨大的损失(低交付率、长延迟等)。为了解决上面的问题,现存的基于虚拟货币的激励机制,如Credit,它依靠一个固定的中心来管理源节点向为它转发消息的中继节点支付虚拟货币的交易。但这个固定的管理中心在缺乏基础设施的机会网络中是很难实现的,所以提出一种新的基于博弈论的激励机制——GIS(game-based incentive strategy)。该机制主要利用三次讨价还价博弈让交易双方在缺乏第三方管理的情况下仍然以合理的价格进行交易,它除了能够刺激自私节点的合作之外,最大的优势就是抑制恶意中继的虚假报价。大量实验表明,GIS能够很好地优化网络交付率和平均延迟,使得网络的有效性和公平性得到保证。
[Abstract]:The opportunistic network is a new type of network, with the characteristics of frequent network disconnection, high bit error rate, random topology change, etc. The message transmission in this network depends on the cooperation between nodes to complete the mode of storing, carrying and forwarding. The limitations of caching and processing power, some nodes show selfishness (refusing to help other nodes forward messages, even malicious (high price), so it can cause a huge loss of network performance (low delivery rate, low delivery rate), In order to solve the above problem, the existing incentive mechanism based on virtual currency, For example, Credit.It relies on a fixed center to manage transactions where the source node pays virtual currency to the relay node that forwards messages to it. But this fixed management center is difficult to achieve in a network of opportunities that lack infrastructure. Therefore, a new incentive mechanism based on game theory, GIS-game-based incentive strategy, is proposed. This mechanism mainly uses three bargaining games to allow both parties to trade at a reasonable price without third party management. In addition to stimulating the cooperation of selfish nodes, its biggest advantage is to suppress false quotes of malicious relays. A large number of experiments show that GIs can well optimize the network delivery rate and average delay. The efficiency and fairness of the network are guaranteed.
【作者单位】：重庆邮电大学移动通信技术重庆市重点实验室;
【基金】：重庆市自然科学基金资助项目(cstc2014jcy40044) 重庆市教委科学技术研究资助项目(KJ1400406) 长江学者和创新团队发展计划资助项目(IRT1299) 重庆市科委重点实验室专项经费资助项目
【分类号】：TN929.5

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