Event-Driven Power Management for Wireless Sensor Networks

In this paper, the authors propose event-driven power management techniques for wireless sensor networks. To accomplish this model a sensor network application as a set of application-specific events that the application may contain. Events are first classified into scheduled and non-scheduled events. These events are further classified according to the size and the locality of the data, and the real-time characteristics of the event. For scheduled events they propose schedule-driven power control and global coordination. For nonscheduled events they propose source-driven and sink-driven power control for both lower energy consumption and higher performance.