【摘要】 传统的TPSN时间同步算法虽然能快速而高效地同步网络上节点的时间,但是在节点频繁加入和失效的情况下,其效率低下。针对以上不足,提出了一种改进的无线传感器网络时间同步算法———ITPSN。该算法不需要构建网络的拓扑结构,能高效地处理网络中节点加入和节点失效情况下的时间同步。实验结果表明,该算法明显提高了网络的健壮性,在节点密集部署的情况下,减少了节点的能量消耗,从而提高了节点的使用寿命。更多还原

【Abstract】 Traditional TPSN algorithm can synchronize time between nodes quickly and efficiently,but has poor efficiency when nodes join and fail frequently.This paper proposed an improved time synchronization protocol for wireless Sensor Networks—ITPSN.The algorithm doesn’t construct the topology of the network,and it is efficient when nodes join and fail frequently.Experiments show that the algorithm improves the robustness of the network,and in the case of dense nodes deployment,reduces the energy consumption to improve the life of nodes.更多还原