无线传感器网络中一种节省资源的快速重路由算法

A Resource-Efficient Fast Rerouting for Wireless Sensor Networks

因其特殊的需求和应用,无线自组传感器网络对信息采集、处理和传输等技术有着特殊的要求。基于选播路由策略,本文提出一种节省能耗和带宽资源的快速重路由算法(RFR)以应用于无线传感器网络的网络通信。使用选播技术,RFR算法可在原有有效传输路径基础上快速重路由,从而降低路由恢复时间,提高路由恢复成功概率。同时,算法通过限制参与重路由的节点数目,减少因重路由而消耗的能量和带宽资源,延长网络的生存周期,并提高网络性能。仿真算例验证RFR算法应用于无线传感器网络的有效性、较优性。

Because of the special requirements and applications, the wireless self-organized sensor network has its particular functions in information collecting, processing and transmitting. Based on anycast routing, the paper presents a resource-efficient fast rerouting algorithm, which is applied in wireless sensor networks to achieve the information transmitting. Using anycast policy, RFR can fast reroute based on originally effective routing and it can decrease the recovery-delay and increase the recovery success rate. Moreover, RFR confines participant in rerouting to save energy and bandwidth resource. Because of scarce resource in wireless sensor networks, RFR can prolong the network＇s lifetime and improve the performance. Finally the paper proves that in wireless sensor networks the algorithm is feasible and preferable by computer simulation.