一种基于地理位置信息的高能效无线传感器网络

An Energy-efficient Wireless Sensor Network B^ed on Geographical Information

分簇协议的目的是要利用节点有限的资源,完成高效的数据采集任务,延长网络使用寿命.在基于簇的网络结构基础上,提出并行分布式自组织成簇协议(Parallel distributed self-organization clustering protocol,PDSOCP),按地理位置将目标区域划分为若干均匀分布的逻辑区域,每个区域根据节点剩余能量多少以及到区域内其余节点平均距离远近选择一个簇头,以代理和簇头共同管理簇事务,并建立了自适应路由.实验表明,该算法能够减少网络能耗,有效延长网络寿命,获得更好的性能.

The purpose of clustering protocol is to achieve efficient data collection by making use of the limited resource in wireless sensor networks, which prolongs the lifetime of networks. In this paper, the parallel distributed self-organization clustering protocol （PDSOCP） based on clustering architecture is proposed. It partitions the target area into many small logic zones distributed uniformly according to the geography locations of the nodes. Every zone selects a cluster head according to the residual energy and the distance between the node and other nodes in the zone. Cluster head and agent manage the cluster together. Furthermore, a kind of adaptive routing algorithm has been established. Simulations show that the algorithm yields an improvement in saving energy and prolonging system lifetime, as well as achieving better performance.