Research on Density Control for Wireless Sensor Networks
无线传感器网络密度控制研究

Energy is a paramount concern in wireless sensor network applications that need to operation for a long time on battery power. An effective approach for energy conservation is scheduling sleep intervals for extraneous nodes, while the remaining nodes stay active to provide continuous service. For the sensor network to operate successfully, the active nodes must maintain both sensing coverage and network connectivity. This paper discusses this problem and presents the analysis of two ILP(Integer Linear Program) formulations and some strategies to reduce overall energy consumption while maintaining guaranteed coverage levels or connectivity level. A consistency strategy to maintain both coverage levels and connectivity level is proposed in the end.