Interference-Free Wakeup Scheduling With Consecutive Constraints in Wireless Sensor Networks
Source: Hindawi Publishing
Wakeup scheduling has been widely used in Wireless Sensor Networks (WSNs), for it can reduce the energy wastage caused by the idle listening state. In a traditional wakeup scheduling, sensor nodes start up numerous times in a period, thus consuming extra energy due to state transitions (e.g., from the sleep state to the active state). In this paper, the authors address a novel interference-free wakeup scheduling problem called compact wakeup scheduling, in which a node needs to wake up only once to communicate bidirectionally with all its neighbors.