基于小世界模型的传感器网络节能查询策略  

Small-world-based energy-efficient query strategy for sensor networks

作　　者：刘志强[1] 蒋泽军[1] 王丽芳[1] 王珺吉[1] 

机构地区：[1]西北工业大学计算机学院,西安710072

出　　处：《计算机应用》2008年第1期21-24,51,共5页journal of Computer Applications

基　　金：陕西省自然科学基金资助项目(2006F08)

摘　　要：查询处理是传感器网络中最重要的技术之一。以降低查询能耗为目的,提出了一种基于小世界模型的查询策略(CardSN)。该策略以关联作为长程连接,降低了网络平均路径距离;将各节点的邻居相对定位,使查询处理获得了方向性。仿真实验结果表明:CardSN具有良好的可扩展性,且能耗明显低于ZRP和CAPTURE。Query processing is one of the most important technologies in sensor networks. To reduce energy consumption of query, a small world based query strategy named Contact-Assisted poweR-efficient Direction-sense-achieved query strategy for Sensor Networks （CardSN） was presented. In CardSN, Contacts act as shortcuts to bring down the average path length of the network; a distributed relative localization algorithm was introduced to achieve a sense of direction. Experimental results show that CardSN has good scalability and can save more energy than ZRP and CAPTURE. Therefore, CardSN is of high-performance and energy-efficiency.

关 键 词：查询 小世界 关联 传感器网络 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]