CAJ | 학술논문

提出一种适用于动态拓扑环境的无线传感器网络分布式分簇算法,算法根据节点的剩余能量以及与动态变化的簇心之间的距离来挑选簇头,从而使网络能量均匀消耗.与集中式算法不同,该算法只需和部分邻居节点交换阈值信息而无需收集全局节点的位置信息,也不必完成远距离通信等任务.仿真与实际应用表明,动态拓扑环境下,该算法具有良好的负载平衡性能和较小的协议开销,与LEACH算法相比,能有效减少能量消耗,网络生存期可以延长20%～30%.
제출일충괄용우동태탁복배경적무선전감기망락분포식분족산법,산법근거절점적잉여능량이급여동태변화적족심지간적거리래도선족두,종이사망락능량균균소모.여집중식산법불동,해산법지수화부분린거절점교환역치신식이무수수집전국절점적위치신식,야불필완성원거리통신등임무.방진여실제응용표명,동태탁복배경하,해산법구유량호적부재평형성능화교소적협의개소,여LEACH산법상비,능유효감소능량소모,망락생존기가이연장20%～30%.
A distributed clustering algorithm using local threshold (DCLT) based on WSN in dynamic topology network was proposed. In DCLT, cluster-heads are elected based on the residual energy of the nodes and the dis-tance between a node and variable centroid of the cluster, which can evenly distribute the energy load among all the nodes. The algorithm offers a fundamentally distributed solution to analyze data locally, does not need to col-lect the information of all the nodes, and does not require long-distance communication. Simulation and practical application results indicate that DCLT can provide better load-balance among cluster heads and requires less pro-tocol overhead. Compared with LEACH protocol, DCLT saves energy greatly so that the network lifetime can be prolonged about 20%～30%.