无线传感器网络路由协议的优化设计

Optimal Design of Routing Protocol for Wireless Sensor Networks

无线传感器网络是一种全新的信息获取和处理技术。对无线传感器网络设计了一个能量有效的分簇路由协议。为了提高能量和宽带的利用率,协议应用了一个能量有效的路由算法对LEACH协议进行了改进,从而减少数据传输的能量消耗,并且延长了网络的生命周期。上述算法为簇头到基站的数据传输构建了一个多跳路由。运用这个多跳路由来传输数据,簇头可以节省大量的能量。为了能延长网络的生命周期,能量的分布也考虑在这个算法中。通过在仿真平台上跟其它两个已经存在的分簇路由协议的比较来评价所设计协议的性能进行仿真。仿真结果显示设计的路由协议有更好的节能效果和更长的网络生命周期。

Wireless sensor network is a novel technology for acquiring and processing information.In this paper,an energy-efficient clustering routing protocol for wireless sensor networks is designed.The protocol improves LEACH protocol by implementing an energy-efficient routing algorithm in order to reduce the energy consumption of data transmission and prolong the network lifetime.This algorithm constructs a multi-hop routing for the data transmission from cluster heads to the base station.Using this multi-hop routing,significant energy of data transmission can be saved for the cluster heads.The energy distribution is also considered when using this algorithm in order to prolong the network lifetime.The performance of the proposed protocol is evaluated and compared with two existing clustering-based protocols.Simulation results show that the proposed protocol achieves better energy efficiency and longer network lifetime.