Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments
Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments
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DOI：
10.1007/11776178_2
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发表时间：
2006-06
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影响因子：
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通讯作者：
Sangeeta Bhattacharya;N. Atay;Gazihan Alankus;Chenyang Lu;O. B. Bayazit;G. Roman
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文献类型：
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作者：
Sangeeta Bhattacharya;N. Atay;Gazihan Alankus;Chenyang Lu;O. B. Bayazit;G. Roman
动态环境中的移动的实体导航是许多使命关键应用（如搜索、救援和消防）的重要组成部分。环境的动态性要求移动的实体不断地保持对变化的环境的高度意识。这一标准使得它很难实现良好的导航性能，仅使用车载传感器和现有的导航方法，并激励使用无线传感器网络（WSNs），以帮助导航。在本文中，我们提出了一种新的方法，集成了一个新的无线传感器网络查询协议称为路线图查询（RQ）的路线图导航算法。RQ使得能够收集关于周围环境的频繁的、最新的信息，从而允许移动的实体做出良好的导航决策。真实火灾场景下的仿真结果表明，在高度动态的环境中，RQ在导航性能和通信成本方面都优于现有方法。我们还提出了一个基于移动的代理实现RQ沿着初步的实验结果，Mica2微尘。
Mobile entity navigation in dynamic environments is an essential part of many mission critical applications like search and rescue and fire fighting. The dynamism of the environment necessitates the mobile entity to constantly maintain a high degree of awareness of the changing environment. This criteria makes it difficult to achieve good navigation performance by using just on-board sensors and existing navigation methods and motivates the use of wireless sensor networks (WSNs) to aid navigation. In this paper, we present a novel approach that integrates a roadmap based navigation algorithm with a novel WSN query protocol called Roadmap Query (RQ). RQ enables collection of frequent, up-to-date information about the surrounding environment, thus allowing the mobile entity to make good navigation decisions. Simulation results under realistic fire scenarios show that in highly dynamic environments RQ outperforms existing approaches in both navigation performance and communication cost. We also present a mobile agent based implementation of RQ along with preliminary experimental results, on Mica2 motes.