Recovery of Synchronization for Wireless Sensor Networks

The method proposed in this paper enables us to recover synchronization when synchronization is lost in a sensor node without a beacon or an ack in a wireless sensor network under ultra-limited but stable resources such as the energy generated from tiny solar cell batteries. When a receiver does not receive data, the method is simply placed in recovery mode, in which a receiver changes its cycle length slightly. In contrast, a sender stays in normal mode. The results of simulations based on the method are given, which show that the method is feasible.