无线传感器网络簇内优化的最小跳数路由算法

OPTIMISED LEAST-HOP ROUTING ALGORITHM OF INTRA-CLUSTER IN WSN

对无线传感器路由协议的发展过程进行了简要的概述,结合无线传感器节点能量有限的特点,在已有的分层网络模式下,通过对最小跳数路由算法的优化,将其应用于分层网络中的簇内路由,使传感器节点仅需记忆自己唯一的转发节点就可将数据转发至簇头节点,同时引入能量水平这一参数,对低能量节点进行了有效的保护。实验结果表明,此方法能够有效地达到节省节点能量和延长网络寿命的目标。

In the paper we briefly summarised the development process of the routing protocols of wireless sensor first. As the node of wireless sensor is power-limited, combining this character and in existing model of hierarchical networks, we optimised the least-hop routing algo- rithm and applied it to intra-cluster routing in hierarchical networks. In this routing method, the sensor node can transfer data to clusterhead nodes just by remembering its sole forwarder, and at the same time the parameter of energy level was imported to ensure the safety of low power nodes effectively. Simulation result shows the goal of a better node power saving and a prolonged lifetime of the network have been achieved effectually by this method.