| 摘要: |
| 提出了一种分布式能量有效的传感器监测网络成簇协议EECTS(energy-efficient clustering protocol for target surveillance).在该协议中,节点根据邻居节点的分布情况以及自己的剩余能量来竞争簇首.为了降低簇首的能量消耗,簇首间形成一个以基站为根的最小生成树,将监测到的数据通过多跳方式直接发送到生成树的上游节点.由于监测网络的首要任务是能够对移动目标进行不间断的监测,此协议还提出了一种簇内调度方法EECTS-1,可监测到网络中的大部分区域,并在此基础上 |
| 关键词: 传感器监测网络 簇 最小生成树 持续监测度 覆盖 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| An Energy Efficient Clustering Protocol for Surveillance Sensor Networks |
|
SHEN Yang,QI Wang-Dong,DAI Hao
|
| Abstract: |
| This paper proposes a distributed energy efficient clustering protocol for target surveillance in sensor networks (EECTS). The protocol selects cluster heads according to a hybrid of node's residual energy and distribution of its neighbors. In addition, for the sake of reducing the energy dissipation of the cluster head, a minimum spanning tree with root of the base station is constructed among the cluster heads. Then it sends the gathered data to its upstream node along the spanning tree. The chief task of surveillance sensor networks is to sensing the moving target. So an intra-cluster node schedule method named EECTS-1 that can senses the most part of the network and it's enhanced method EECTS-2 are introduced. The two methods can obtain the high continuous surveillance degree when the moving target enters into the network. EECTS produces a linear network lifetime in the number of nodes and keeps good continuous surveillance degree simultaneously. The simulation results show that with the same performance of surveillance the EECTS-1 achieves the same lifetime as that HEED obtains and outperforms DEEG with up to 35% improvement. The EECTS-2 outperforms HEED significantly with prolonging the network lifetime about 70%~80%. Therefore the EECTS is suitable for military target surveillance and has high reliability of the sensing information. |
| Key words: surveillance sensor network cluster minimum spanning tree continuous surveillance degree coverage |
