International Journal of Engineering Sciences & Research Technology (IJESRT)
In Wireless Sensor Network (WSN) energy rate of consumption is very important factor because once the energy of node is consumed it can't be regenerated and node becomes dead. It is nearly impossible to replace the dead node due to hostile environment. Each node has some initial energy. Energy of node is consumed during reception, transmission and processing of data packets. Therefore energy of node should be optimally utilized during these tasks. Another important issue in WSN is security of data packets transmitted through the network.