一种基于WSN有效的事件查询获取策略

发布时间：2018-05-10 16:59

本文选题：无线传感器网络 + 事件查询　；参考：《中南大学学报(自然科学版)》2014年07期

【摘要】：针对以往事件查询中事件查询速度不够快、成功率不高及网络寿命不长等问题,提出一种在速度、成功率与网络寿命等方面取得较好效果的事件查询策略。该策略的主要要点是:不同于以往研究中随机扩散的方式,在事件信息存储时,先基于哈希函数,将事件信息存储到哈希函数映射所指示的跳数相同的一段连续节点上;在事件查询时,依据同样的哈希函数,向哈希函数所指示的方向路由,以最小的路由代价获得事件信息。给出了此策略的查询与存储代价,并采用Omnet++网络模拟器进行仿真实验,与经典事件查询算法进行的对比。研究结果表明:本文的策略具有很好的性能,对相关应用具有较好的指导意义。
[Abstract]:In order to solve the problem that the speed of event query is not fast, the success rate is not high and the network life is not long, this paper proposes an event query strategy which can achieve better results in terms of speed, success rate and network lifetime. The main points of the strategy are as follows: different from the random diffusion method in previous studies, the event information is stored on a continuous node with the same number of hops indicated by the hash function mapping when the event information is stored first based on the hash function; In the event query, the same hash function is used to route to the direction indicated by the hash function, and the event information is obtained at the minimum routing cost. The query and storage cost of this strategy is given, and the simulation experiment using Omnet network simulator is carried out, which is compared with the classical event query algorithm. The results show that the proposed strategy has good performance and has a good guiding significance for related applications.
【作者单位】：中南大学信息科学与工程学院;湘南学院计算机系;
【基金】：国家自然科学基金资助项目(61073104,61073186) 湖南省教育科学“十二五”规划课题(XJK012CGD034) 郴州市科技计划项目(2012cj120) 湖南省科技计划项目(2011TP4016-3) 湖南省教学改革研究项目(湘教通[2012]401号-442)
【分类号】：TP212.9;TN929.5

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