Novel algorithm of local and on-demand cluster(s) maintaining for wireless sensor networks
一种新的无线传感网局域按需簇维护算法

Time driving and cluster head turning will result in an unnecessary consumption of energy in wireless sensor networks. In this paper, a maintaining cluster(s) algorithm based on energy driving and local-area re-election of cluster head(s) is presented to solve the problem. The calculation of dynamic energy threshold value and the schedule of dynamic TDMA time slot are included in the algorithm. Non-periodic and local cluster head turning and timely maintaining of the changed cluster(s) are realized in the algorithm. The simulation results in the NS2 show that the proposed method can prolong lifetime of the whole network and increase transmitted data compared with the LEACH protocol.