具有自相似到达流的无线Mesh网络流量模型

Traffic Model for Wireless Mesh Networks Based on Self-similar Arrival Flows

随着无线Mesh网络应用的日益广泛,无线Mesh网络的服务提供和性能保证逐渐成为研究者和使用者关心的主题,本文根据无线Mesh网络中流量的到达具有自相似特性,基于当前流行的随机网络演算提出具有分形布朗运动的自相似到达流的无线Mesh网络流量模型.利用中心极限定理构造聚合流和单流的随机到达曲线.数值结果表明本文提出的流量模型能反映出无线Mesh网络流量的实际特征.本文结论在基于随机网络演算的高质量、高可靠性的无线Mesh网络服务质量保证研究中具有重要的理论价值,对无线Mesh网络的性能评价具有重要意义.

With development of wireless Mesh networks,service performance becomes a concerned topic for researchers and users.Based on popular stochastic network calculus,the paper proposes a traffic model with Fractional Brownian Motion arrival flows.We apply Central Limit Theorem to construct a stochastic arrival curve for aggregation flows and single flow according to flows has self-similarity in wireless Mesh networks.The numerical results show that the traffic model can express practical characteristic of flows.It has important theoretical significance for high quality and reliability service guarantee in wireless Mesh networks.