基于博弈论的无线自组网拥塞控制算法

Li Zhang, Jinfeng Zou
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引用次数: 8

摘要

网络拥塞对网络的吞吐量、路由和寿命等有严重的影响。本文从无线Ad Hoc网络的交通流出发,从博弈论的角度考虑节点之间和相邻链路之间的通信,提出了拥塞控制模型。在此基础上,提出了网络拥塞和优化算法CCAD。CCAD以端到端交通流为研究对象,采用基于速率的端到端拥塞控制策略,尽量避免链路和网络中的拥塞。在此过程中,在节点上采用拥塞控制机制,并在节点上完成路由拥塞控制。为了适应无线Ad Hoc网络参数和不确定时变拓扑结构,采用自适应优化策略。仿真实验结果表明,所提出的拥塞控制模型和算法符合移动Ad Hoc网络的特性,能够快速响应网络拥塞变化,从而稳定流量,避免拥塞。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Wireless Ad Hoc Network Congestion Control Algorithm Based on Game Theory
Network congestion has a severe impact on the throughput, routing and lifespan, etc. of a network. This paper, starting from the traffic flow of a wireless Ad Hoc network, put forwards the congestion control model after considering from the perspective game theory the communication of nodes and the neighboring links. Based on this model, it also raises congestion and the optimization algorithm CCAD. CCAD, with the end-to-end traffic flow as its study object and adopting rate-based end-to-end congestion control strategy, tried to avoid congestion in links and network. A congestion control mechanism is adopted at the nodes in this course and the routing congestion control is also completed there. To adapt to the wireless Ad Hoc network parameter and the uncertain and time-varying topology structure, self-adapting optimization strategy is used. The simulated experiment result shows that the proposed congestion control model and algorithm fit in with the properties of mobile Ad Hoc network and can rapidly respond to the network congestion changes so that it can stabilize the flow rate and make the congestion avoided.
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