无线传感器网络多跳路由协议研究

Research of Wireless Sensor Network(WSN) Multiple Hop Routing Protocol

无线传感器网络发展迅速,但传感器的高能耗问题成为制约其发展的主要瓶颈,高效节能的路由协议设计成为研究热点;针对目前无线传感器网络常用的LEACH路由协议存在的簇首能耗过分集中、簇首分布不均衡问题,提出了改进的路由协议EEACRA,在总结、分析LEACH路由协议现有问题的基础上,给出了EEACRA路由协议的簇首选取门限值、簇首位置调整算法和基于能量代价最小的簇间多跳路由算法的实现方法,同时给出了具体的实现EEACRA协议的工作流程和关键算法;在MATLAB环境下对LEACH路由协议和EEACRA路由协议进行了仿真,对比了不同能耗降低措施对网络能耗降低的贡献;仿真结果表明EEACRA路由协议的网络稳定期较LEACH路由协议有较大的改善;证明了改进的路由协议EEACRA可以有效地提高网络的稳定期。

The wireless sensor network has developed rapidly, but the high energy consumption of the sensor has become the main bottle neck restricting its development. Based on the current LEACH routing protocol of wireless sensor network （WSN） are commonly used ex- cessive concentration of energy consumption of cluster head, cluster head distribution imbalance problem, puts forward the improved routing protocol EEACRA. After studying the existing problems on the basis of LEACH routing protocol, gives the EEACRA routing protocol of the cluster head selecting threshold method, cluster head position adjustment algorithm and the cluster based on the minimum energy cost be tween multiple hops routing algorithm implementation method, finally in the MATLAB environment to LEACH routing protocol and EEA CRA routing protocols are simulated, the contribution of different energy consumption reduction measures to the network energy consump tion reduction is compared. The simulation results show that the network stability EEACRA routing protocol is the improvement of the LEACH routing protocol have larger. Proved that the validity of the agreement.