传感器网络中基于路由关键点的结点调度机制

Node-scheduling scheme based on route key node in wireless sensor network

无线传感器网络是由大量低能量、短寿命、不可靠的传感器结点组成的,延长网络寿命是一个主要的目标。良好的结点调度算法可以在保证网络性能的前提下,延长系统的寿命。据此提出了一种结点调度算法,通过关掉一些冗余的结点,降低整个系统的能量消耗,由此增加系统的寿命。该算法既保证了网络区域的覆盖范围,又维持了一些路径上的关键点,以便进行路由的时候不会中断。

Wireless sensor networks consist of a large number of low-power, short-lived, unreliable sensor nodes, one of main goals is to prolong network lifetime. Good node scheduling, which not to diminish the capability of network, can increase the lifetime of system. A node-scheduling scheme is presented, which can reduce system overall energy consumption, therefore increasing system lifetime, by turning offsome redundant nodes. The scheme not only preserves the coverage of network but also key node in order not to interrupt routing.