一种结合LEACH和PEGASIS协议的WSN的路由协议研究  

Improved Routing Protocol in Wireless Sensor Network Based on LEACH and PEGASIS

作　　者：李建奇[1] 曹斌芳[2] 王立[1] 王文虎[1] 

机构地区：[1]湖南文理学院电气与信息工程学院,湖南常德415000 [2]湖南文理学院物理与电子科学学院,湖南常德415000

出　　处：《传感技术学报》2012年第2期263-267,共5页Chinese Journal of Sensors and Actuators

基　　金：湖南省科技计划项目(2010SK3052);湖南省自然科学基金项目(11JJ6062)

摘　　要：均衡节点能耗和提高能耗效率以延长整个网络的寿命是无线传感器网络研究的关键所在。结合典型LEACH和PE-GASIS的优点,针对真实环境下节点的分布存在空洞区域的特点,提出了一种改进的节能快速路由协议。协议在建簇过程中计算簇的分散系数,并通过阈值来确定的簇内通信方式。在簇首之间采用单跳和多跳传输结合的传输机制。理论分析及仿真结果表明,新提出的路由协议比LEACH更均衡且有效减少了能量消耗,延长了网络的生命周期。The key to wireless sensor network research is how to balance nodes ＇ energy consumption and improve energy efficiency in order to extend the life of the entire network.Based on LEACH and PEGASIS,as for the characters of node distribution existing empty area in real environment,an improved energy-saving and efficiently routing protocols is proposed.It calculates the dispersion coefficient in the process of building the cluster,and determined cluster communication by the threshold.In the steady state,cluster-head sends its data to gateway by single hop or multi-hop.The simulation shows that the proposed protocol can effectively save energy,balance network load and extend the network ＇ s lifetime.

关 键 词：无线传感器网络 分簇路由 分散系数 能量均衡 

分 类 号：TN919.2[电子电信—通信与信息系统]