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中文摘要：
由于无线传感器网络节点的能量是有限的，因此设计能量有效的路由协议是非常重要的。LEACH和PEGASIS是无线传感器网络中典型的层次路由协议。文中在两者的基础上提出了一种改进的节能可靠路由协议，在簇形成过程中低能量簇首节点可以通过寻找替代簇首，均衡负载，避免过早死亡；在簇首之间形成一条链路主干路由，进行数据融合以及多跳传输，并针对链路易断的缺点提出一种可靠传输机制。理论分析及仿真结果表明。新提出的路由协议比LEACH更能均衡并减少能量消耗，延长了网络的生命周期。
英文摘要：
Since sensor nodes have limited energy, energy efficient routing is very important for wireless sensor network （WSN）. Among those protocols developed for WSN, LEACH and PEGASIS are two most classical hieraehical routing protocols. In this paper, a novel energy- saving and reliable routing protocol was presented based on LEACH and PEGASIS. In the process of cluster formation, one selected cluster head with low energy could find a high energy node to be its replacer. A chain - based routing for inter- cluster communication between cluster hesds was formed to fuse and wansform data. To compensate the shortcoming of link routing, one reliahle transform .scheme was also proposed. Theoretical analysis and simulation results demonstrate that our novel protocol, compared with LEACH, is more efficient to balance and reduce energy consumption and hence prolongs the lifetime of WSN.
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