Journal of Theoretical and Applied Information Technology
Wireless Sensor Network (WSN) consists of hundreds or thousands of sensor nodes which have limited energy, computation and memory resources. These sensors are randomly deployed in a specific area to collect useful information periodically for few months or even few years. The applications of WSN in some extreme environment make sensor nodes difficult to replace once the battery lifetime expires. Since the wireless transmission is the most energy consuming operation, designing an energy efficient routing protocol becomes the main goal for the wireless sensor network.