传感器网络关联区域游走查询机制

在多数应用中,传感器网络被视为分布式数据库,解析查询是其主要功能之一.提出了关联区域游走查询机制,其设计目标是实现对大规模、节点位置信息无关的传感器网络高效节能的资源查询处理.该机制借鉴小世界网络的研究成果,以关联节点作为长程连接,降低了网络平均路径长度,缩短了查询源和目标问的距离;各节点的邻居与其关联节,点的邻居组成关联区域.该机制通过查询消息在关联区域间游走来完成查询,避免了全网泛洪.教学建模分析和实验仿真结果显示:与现有的几个重要相关机制相比,关联区域游走机制具有显著的低能耗特性;此外,关联区域游走机制还具有良好的可扩展性和相比CAPTURE更加广泛的适用范围.

Walk among Contact Areas Query Mechanism for Sensor Networks

Sensor networks may be viewed in several classes of applications as a distributed database,one of the main functions of sensor networks is to resolve queries.Walk among contact areas query mechanism,proposed in this paper,is designed for power-efficient queries in large-scale,location-free sensor networks.The mechanism borrows from theoretical results from small-world and uses contacts that act as short cuts,and hence reduces the average path length of networks and distance between querier and target;contac...