无线传感器网络的许多应用场合需要数据传输的可靠性,因此无线传感器网络数据传输的容错性一直是相关领域的研究重点.传统的1+1数据保护模式会给网络增加较大的负载,并不适合于资源受限的无线传感器网络.利用网络编码实现传感器网络链路容错策略,在保证数据传输容错性的同时还可以降低网络中传输的数据包数量,从而可以节省节点的耗能,延长网络的生存时间.
Under some circumstance,wireless sensor network(WSN) is on high demand of reliable data transmission.Therefore the focus on data transmission fault-tolerance has intensively risen.The original 1+1 data protection model is considered high energy consuming strategy of WSN.It proposed a network coding that based scheme was introduced in clustering WSN.The simulation result showed the scheme can not only achieve the link failure tolerance,but also reduce the number of packets in data transmission and power consuming.