Priority based channel assignment with pair-wise listen and sleep scheduling for wireless sensor networks

Plethora of anticipated applications and ease of deployment have influenced researchers and disseminated the importance of sensor networks in the research community. Energy (battery-power) is an important and meager resource in sensor networks. We attempt to conserve energy in the sensor network and posit a priority based channel assignment with pair-wise listen and sleep scheduling scheme. The scheme uses distinct channels in one-hop neighborhood of a node. In case of non-availability of any new channel, we intelligently reuse the existing channels to guarantee that the node with minimum energy in one-hop neighborhood has more chance of getting a dedicated channel. We also incorporate periodic listen and sleep methodology in a pair-wise fashion to conserve battery-power of each node. Simulation results show that the proposed strategy fends to conserve reasonable amount of battery power and avoids collisions.