Localized performance-guided reconfiguration for distributed sensor networks
Parag Joshi, Thomas C. Jannett · 2007
Sensor networks that can reconfigure to extend their useful operating life while guaranteeing coverage performance are of interest. This paper describes the use of localized performance-guided reconfiguration (PGR) for reconfiguring a distributed sensor network in a target localization scenario using binary sensor data. If a sensor in a cluster becomes unavailable due to a loss of battery power or other reasons, PGR activates redundant sensors as necessary to allow the network to achieve the desired coverage performance. For a simple demonstration of localized PGR, we compare the performance of a multicluster network using localized PGR, a nearest-neighbor reconfiguration approach, and an approach where no reconfiguration of the field is done. Without PGR, coverage performance degraded as sensors were lost. With PGR, every time a sensor failed, the respective cluster was reconfigured to maintain coverage. In this way, clusters made local reconfiguration decisions to achieve the global field coverage performance goal.