Author Name
Shruti Khare, B. P. Patel, Dr. Ravi Singh Pippal, Dr. Y. K. Rana
Abstract
In the recent years, the technology of wireless sensor networks has gained a lot of importance. Wireless sensor
networks are a special case of ad-hoc wireless networks. A wireless sensor network is a collection of sensor nodes that
communicate through wireless links to work together to carry out functions. The sensor nodes’ basic function is to monitor
the physical and environmental changes in terms of pressure, humidity, temperature etc. (referred as sensing). Sensor
nodes have processing, communication and sensing capabilities. WSNs are used in number of diverse scenarios including
area monitoring, health care monitoring, air pollution monitoring, natural disaster prevention, industrial health
monitoring, calamity prevention etc. Sensor nodes have small batteries with limited power. Large number of sensor nodes
in WSN makes it impractical to replace sensor node batteries. Thus the life time of sensor nodes is an important attribute of
a wireless sensor network. The life time