【作者】 周东清； 朱娜； 葛午未；

【Author】 Zhou Dongqing,Zhu Na,Ge Wuwei

【机构】 大连理工大学计算机科学与工程系A0819室；

【摘要】 由于无线传感器网络节点具有有限的能源,设计高效节能的协议来延长网络寿命就成为解决该问题的关键技术之一。Since the energy limitation of wireless sensor node,one of the key technology to prolong the life of network is to design a power efficient protocol．本文通过对网络节点能量消耗问题的分析,提出了一种能源有效的集中式网络数据收集协议EEDGP。在EEDGP 中,聚类首领均匀分布于网络内部,聚类内部节点间通信遵循自由空间模型。同时在聚类内部和聚类首领之间采用最小路由树算法来缩短各节点到聚类首领的传输距离、减少与基站直接通信的节点数目。所有接收到数据的中间节点对数据进行融合,以降低每轮中传输的数据量。每隔一段时间基站重新进行聚类分割以平衡节点间的能量消耗。仿真结果表明,EEDGP 有效的延长了节点和网络的寿命。更多还原

【Abstract】 Since the energy limitation of wireless sensor node, it turns into a key technology to design an energy efficient protocol to prolong the lifetime of network. Based on the analysis of energy consumed of nodes, this work proposed a new centralized energy efficiency data gathering protocol called EEDGP. EEDGP achieves fairly uniform cluster head distribution across the network. The communication among nodes follows free space model, and min-router tree is used to shorten the communicate distance in clustering. Among cluster heads min-router tree is also used to reduce the traffic between nodes and base station. Nodes aggregate the received data with its sensed data to reduce the traffic every round. After an interval the base station recalculates the routing information, so that it balances the energy consumption among the nodes. The simulation results demonstrate that EEDGP efficiently prolongs the network lifetime.更多还原