事件驱动的带执行器无线传感器网络分簇算法研究

带有执行器的无线传感器网络是指在传统无线传感器网络中加入执行节点,形成传感器节点、执行节点和基站共同构成的三层监控网络。根据执行器在能量、计算能力和感知能力方面的优势,提出建立应用于事件调度的双环分簇算法。算法将执行器连接成双环结构,提升网络在线扩展能力的同时,也为无线传感器网络满足事件驱动构建基础。仿真实验证明,此算法能够有效降低网络能耗,随着节点数目的增加和监控领域的扩大,表现更加凸出。

Research on an Event-Driven Clustering Algorithm for Wireless Sensor and Actor Networks

Wireless sensor and actor networks （WSANs） refer to a group of sensors and actors linked by wireless medium, and a three-level framework composed of wireless sensor nodes, actors, and base stations ex-isted in WSANs. In this paper, an event-driven double-ring clustering algorithm for wireless sensor and actor networks （EDRCA） is presented, taking into account of the advantages of actors in aspects of power, computing ability and perception. The EDRCA links the actors in the shape of double-ring. This shape improves the ability of online implementation, and develops the basis of event-driven system. The simulation shows that EDRCA can dramatically reduce the energy consumption of wireless sensor networks, and gets much higher profit when more nodes or larger monitoring range is taking into account.