关键词: 多跳, 传感器网络, 层次协议, 动态树型结构

Abstract: Consisting nodes with limited battery power and wireless communication, sensor webs are deployed to collect useful information from a variety of environments. A new dynamic tree (D-tree) structure protocol based on the clustering protocol was proposed. It has significant impact on the overall energy depletion of the network. In D-tree protocol, most of the nodes communicate only with a close neighbor and incorporate data to reduce the amount of information to transmit to the cluster headers (CH). What should be emphasized is that the data generated by nodes won’t pass through the same route. They search for their multi-hop routing dynamically. The sensor nodes elect the CHs at regular intervals. Simulations show that D-tree can achieve a considerable reduction in energy dissipation compared with conventional routing protocols.

Key words: multi-hop, sensor network, cluster protocol, Dynamic-Tree