WSANs中基于跳步数自适应的路由算法

A Hop-adaptive Routing Algorithm for Wireless Sensor and Actor Networks

无线传感反应网络是由大量传感节点和少量(可移动)资源丰富的反应节点构成.传感节点负责收集外部环境信息,而反应节点对外部环境实施相应的操作.本文分析节点能量消耗模型,求解出理想条件下单条路径上总能耗最小时的最优跳步数.在此基础上,提出了一种跳步数自适应的路由算法HAR,用来实现数据收集的实时需求与能量消耗之间的平衡.仿真实验表明:HAR算法在平衡能量消耗与时间延迟的性能上优于HBMECT算法,而且能较好地适用于反应节点移动的情形.

Wireless sensor and actor networks（WSANs） are composed of a large number of sensors and a small number of（mobile） resource-rich actors.Sensors gather information about the physical phenomenon,while actors take decisions and then perform appropriate actions upon the environment.The paper analyzes the model of energy consumption,and solves the optimal number of hops when the total energy consumption in a path is minimal under the ideal condition.After that,a hop-adaptive routing algorithm（HAR） is proposed to realize the balance between the real-time requirement of data collection and the total energy consumption of the network.The extensive simulations show that,HAR algorithm is advantage to HBMECT algorithm with the balance of real-time and energy-consuming,and it adapts to the case of mobile actor.