Slot Assignment over Wireless Sensor Networks

In wireless sensor networks, one of the most important challenge is power saving, then various contributions are suggested since a decade. In this paper, we propose a distributed and an adaptive gossiping technique able to guarantee communications over all sensors and to save a high amount of energy. The aim is to allow to the network to achieve a self organizing procedure in order to provide an efficient scheduling approach for communications over all sensors. Each sensor will have a particular slot for listening and another one for sending. The slot assignment is achieved in a distributed manner and is continuously reconfigurable during all the time. That means when a sensor leaves the network, its assigned slot will be recovered. When a new one wants to join the network, a slot will be assigned to it on-line. Our main contribution, is to show how our approach will ensure the reconfiguration of the network.