无线传感器网络中ERARP拓扑控制算法

为了延长无线传感器网络的生命周期,进行了无线传感器网络中节能路由协议的探索性研究,提出了一种新的节能路由协议并将其具体实现.首先分析了传感器网络应用的特点以及设计和应用中的限制,综述了现有传感器网络中节能路由设计的方法,设计并实现了一种基于能量的半径自适应路由协议ERARP;然后在OPNET仿真平台上对该协议进行了仿真模拟;最后与无线传感器网络传统的两种节能路由协议基于信息协商的传感器网络协议和直接扩散协议在同等条件下针对节点能量使用、延迟、丢包率和吞吐量等四个性能评价指标进行了对比.结果表明,ERARP使得节点能够根据自身剩余能量的状况对节点的运行模式进行控制,同时对无线模块的收发半径进行动态调整,达到节能目的.

Energy based radius self adaptive routing protocol in wireless sensor networks

In order to prolong the lifetime of wireless sensor networks, the paper did some exploring researches on the energy aware route protocol of the wireless sensor networks, a new energy save route protocol was brought forth and implemented. The characters and constraints of the wireless sensor network ware studied firstly, and the methods of the energy aware and energy save route protocols in wireless sensor networks were researched carefully. The energy based radius self adaptive routing protocol was designed and implemented. The simulation of the protocol was done in the OPNET modeler environment. The performance of energy saving critic, such as end to end delay, data dropped and throughput was compared with sensor protocols for information via negotiation and directed diffusion in similar simulation scene. The results show that switches its running mode with the energy consuming of nodes, so that meet the goal of energy saving of the nodes in wireless sensor networks.