International Journal of Computer Applications
Wireless sensor networks are a class of wireless networks intended for monitoring physical and environmental phenomena. The main task of sensor nodes is to collect specific data from surrounding environment and then route it to the base station or sink. The power efficiency and life time maximization are the foremost requirements of sensor networks. When a particular event is detected, the sensor nodes become active and there is a sudden burst of traffic towards the sink. This may lead to buffer overflow at the nodes causing packet drops and finally degrades overall network performance.