DEED:一种无线传感器网络中高效节能的数据通信协议

Distributed Energy Efficient Data Gathering in Wireless Sensor Networks

无线传感器网络由许多具有低功率无线收发装置的传感器节点组成,能够有效地从不同环境监测收集周边环境信息并传送到远处的基站进行处理.由于传感器节点的电池能量极为有限,因此节点的通信应有效的利用能量,以延长网络的生命周期.LEACH[4]协议是一种典型的能有效延长网络生命周期的节能通信协议.本文提出了一种分布的、高效节能的通信协议DEED,DEED利用了数据聚合技术,以聚类的方式组织节点,聚类首领在网络中均匀分布并组织成路由树,由根节点与基站直接通信.实验结果显示DEED性能远好于LEACH.

Wireless sensor network consisting of a large number of small sensors with low-power transceiver can be an effective tool for gathering data in a variety of environment. The collected data must be transmitted to the base station for further processing. Since a network consists of sensors with limited battery energy, the method for data gathering and muting must be energy efficient in order to prolong the lifetime of the network. LEACH^[4] is an elegant energy efficient protocol to maximize the lifetime of sensor network. In this paper, we presented DEED, a distributed energy efficient protocol with data fusion technology. DEED dusters nodes into groups and builds muting tree among cluster heads,among which only the root node communicates the base station directly. SimulAtion results show that DEED performs far better than LEACH.