Exploiting Reactive Mobility for Collaborative Target Detection in Wireless Sensor Networks

—Recent years have witnessed the deployments of wireless sensor networks in a class of mission-critical applications such as object detection and tracking. These applications often impose stringent Quality-of-Service requirements including high detection probability, low false alarm rate, and bounded detection delay. Although a dense all-static network may initially meet these Quality-ofService requirements, it does not adapt to unpredictable dynamics in network conditions (e.g., coverage holes caused by death of nodes) or physical environments (e.g., changed spatial distribution of events). This paper exploits reactive mobility to improve the target detection performance of wireless sensor networks. In our approach, mobile sensors collaborate with static sensors and move reactively to achieve the required detection performance. Specifically, mobile sensors initially remain stationary and are directed to move toward a possible target only when a detection consensus is reached by a gr...

• Type: Journal
• Year: 2010
• Where: TMC
• Authors: Rui Tan, Guoliang Xing, Jianping Wang, Hing-Cheung So
• Keywords: Detection, Detection Performance, Sensor, TMC 2010