无线传感器网络中高效节能的数据收集策略  

An energy-efficient strategy for data gathering in wireless sensor networks

作　　者：童国顺 唐秋玲[1] 王茜[1] 石佳豪 韩玉龙[1] 

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2016年第3期804-809,共6页Journal of Guangxi University（Natural Science Edition）

摘　　要：无线传感器网络中采用移动sink收集网络中的数据虽然能够减少节点的能量消耗，但这也增加了网络的时延。为了解决此问题，提出了一种高效节能的数据收集策略（ESGD）。根据网络节点的数目把网络划分若干个大小相等的虚拟子网，依据节点的剩余能量和距各自子网的重心距离制定模糊推理规则，选择最佳的节点作为子网的簇头，对移动sink构建起平滑的移动路径。仿真实验结果表明：ESGD路由策略不仅能够延长网络寿命，也大大地减少了网络时延，并且网络具有较好的扩展性。In wireless sensor networks, using mobile sinks to collect data can reduce the energy consumption of nodes, hut it also increases the network delay. To deal with this problem, an energy-efficient strategy for gathering data （ESGD） is proposed. The network is partitioned into several uniform sized virtual sub-networks based on the number of nodes in the network ; secondly, fuzzy infer- ence rules are made according to the residual energy of nodes and the distance between node and center of gravity, and the best node as the cluster head of the sub-network is chosen. The smooth moving path for mobile sinks is constructed. The simulation results show that this strategy not only can prolong the network lifetime, but also reduce the network delay greatly, meanwhile, the network has good scalability.

关 键 词：无线传感器网络 数据收集 移动SINK 网络寿命 网络时延 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]