面向协同定位的无线传感器网络调整方法

项目名称： 面向协同定位的无线传感器网络调整方法

项目编号： No.61202487

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 计算机科学学科

项目作者： 陈涛

作者单位： 中国人民解放军国防科学技术大学

项目金额： 23万元

中文摘要： 随着无线传感器网络近年来的迅猛发展，其定位问题，尤其是协同定位问题，得到了广泛的关注。然而由于硬件或部署条件的限制，网络可能只是部分可被定位的。大多数研究人员都把重点放在如何定位尽可能多的节点上，少数研究人员虽然提出了面向协同定位的网络调整方法，但存在调整方式粗放、效率较低等缺点。本项目结合已有研究成果和发展趋势，率先提出能够确保网络可定位性的高效网络自调整理论和方法，通过区分初始网络中可被定位的节点和不可被定位的节点提高自调整粒度及调整效率。针对基于移动节点的协同定位问题，提出相应的理论基础和移动路线规划方法，对基于移动节点进行网络调整在理论和实践上的可行性进行验证。把外部事件引入到面向协同定位的无线传感器网络调整领域，提出了比较紧的调整网络至可被定位状态的充分条件，使利用外部事件进行网络调整的方法具有很高的可行性。项目还将通过仿真和实验对所提出方法的性能和效果进行评估验证。

中文关键词： 无线传感器网络；定位；网络调整；；

英文摘要： As the proliferation of wireless sensor networks, the localization of the network, especially the collaborative localization problem, has drawn the attention of many researchers. Due to hardware and deployment limitations, the network may be partially localizable. Most researchers focus on how to localize as many nodes as possible. Only a few researchers proposed network adjustment approaches for collaborative localization, however, these approaches are coarse-grained and inefficient. Combining recent research results and trends, this project propose a novel self-adjustment theory and corresponding methods, which distinguish localizable and non-localizable nodes in the original network to achieve fine-grained adjustment with high efficiency. Aiming at the network adjustment with mobile node, the project builds corresponding theoretic foundations and proposes the scheduling method for the moving path. As far as we know, this project is also the first to use external events for localization-oriented network adjustment. A tight sufficient condition for network adjustment with external events is proposed, which guarantees the high efficiency and feasibility of the adjustment method. The performance and effectiveness of the proposed method will also be evaluated and validated through simulations and experiments.

英文关键词： Wireless sensor networks；localization；network adjustment；；