WSNs ( Wireless Sensor Networks ) has become the most commonly used technology of the twenty first century. WSNs are self-configured wireless networks with no infrastructure that monitor environmental and physical conditions such as pressure, sound, temperature, motion, and vibration in the area of interest. It has a large number of low-cost, battery operated sensors, which sense

certain phenomena at regular intervals for a long periods and periodically send the data observed by it to a centralized point known as a sink or base station for additional observation and analysis.