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在无线传感器网络中,由于传感器节点的能源十分有限,节能是设计的首要因素。然而,无线传感器网络的多业务在现实生活应用中对QoS(服务质量)都有不同的需求,这就使得WSN网络的QoS研究成为了专家学者们的主要研究方向。在WSN网络拓扑结构和业务类型的研究基础上,使用网络模拟器(Network Simulator Version 2,NS2)来搭建基于多业务共存的星型以及对等结构两种WSN网络仿真平台,建立多种业务流量模型,实现以无线传感器网络协议、流量模型、拓扑为基础的功能模块化设计;并对无线传感器网络关键性能进行了仿真模拟,实现延时、吞吐量、能耗等关键性能的分析。
In wireless sensor networks, energy conservation is the primary factor of design because the energy of sensor nodes is very limited. However, the multi-service of WSN has different QoS (Quality of Service) requirements in real-life applications, which makes the QoS research of WSN network become the main research direction of experts and scholars. Based on the research of WSN network topology and service type, we use Network Simulator Version 2 (NS2) to build two WSN network simulation platforms based on multi-service coexistence and peer-to-peer structure, and establish a variety of business traffic Model to realize the functional modular design based on wireless sensor network protocol, traffic model and topology. The key performance of wireless sensor network is simulated and the key performance of delay, throughput and energy consumption are analyzed.