Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles

This paper considers the scheduling problem of mobile sensors in a hybrid wireless sensor network (WSN) with obstacles. In a WSN, static sensors monitor the environment and report where events appear in the sensing field. Then, mobile sensors are dispatched to these event locations to perform in-dep...

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Main Authors: Guangqian Xie, Chunguang Li, Feng Pan
Format: Article
Language:English
Published: Hindawi - SAGE Publishing 2014-06-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1155/2014/139731
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author Guangqian Xie
Chunguang Li
Feng Pan
author_facet Guangqian Xie
Chunguang Li
Feng Pan
author_sort Guangqian Xie
collection DOAJ
description This paper considers the scheduling problem of mobile sensors in a hybrid wireless sensor network (WSN) with obstacles. In a WSN, static sensors monitor the environment and report where events appear in the sensing field. Then, mobile sensors are dispatched to these event locations to perform in-depth analysis. The sensing field may contain obstacles of any shape and size. A big challenge is how to efficiently dispatch the mobile sensor to find an obstacle-avoiding shortest path. To remedy this issue, we propose an efficient scheduling mechanism based on connection graphs in this paper. Specifically, the region of network is divided into grid cells with the same size. Consequently, the search space of the shortest path is restricted to the connection graphs composed of some grid cells. Through simulation, we verify the effectiveness of our method. The paper contributes to developing an energy-efficient dispatch solution in the presence of obstacles.
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spelling doaj.art-c1bb5bed6fc6478db1031bce6ede2ffc2023-08-02T03:45:10ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772014-06-011010.1155/2014/139731139731Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with ObstaclesGuangqian Xie0Chunguang Li1Feng Pan2 Changzhou Institute of Technology, Changzhou 213002, China Changzhou Institute of Technology, Changzhou 213002, China Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, ChinaThis paper considers the scheduling problem of mobile sensors in a hybrid wireless sensor network (WSN) with obstacles. In a WSN, static sensors monitor the environment and report where events appear in the sensing field. Then, mobile sensors are dispatched to these event locations to perform in-depth analysis. The sensing field may contain obstacles of any shape and size. A big challenge is how to efficiently dispatch the mobile sensor to find an obstacle-avoiding shortest path. To remedy this issue, we propose an efficient scheduling mechanism based on connection graphs in this paper. Specifically, the region of network is divided into grid cells with the same size. Consequently, the search space of the shortest path is restricted to the connection graphs composed of some grid cells. Through simulation, we verify the effectiveness of our method. The paper contributes to developing an energy-efficient dispatch solution in the presence of obstacles.https://doi.org/10.1155/2014/139731
spellingShingle Guangqian Xie
Chunguang Li
Feng Pan
Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
International Journal of Distributed Sensor Networks
title Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
title_full Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
title_fullStr Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
title_full_unstemmed Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
title_short Energy-Efficient Scheduling for Mobile Sensors Using Connection Graphs in a Hybrid Wireless Sensor Network with Obstacles
title_sort energy efficient scheduling for mobile sensors using connection graphs in a hybrid wireless sensor network with obstacles
url https://doi.org/10.1155/2014/139731
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AT chunguangli energyefficientschedulingformobilesensorsusingconnectiongraphsinahybridwirelesssensornetworkwithobstacles
AT fengpan energyefficientschedulingformobilesensorsusingconnectiongraphsinahybridwirelesssensornetworkwithobstacles