International Journal of Computer Science and Management Studies (IJCSMS)
The authors study leach protocol of wireless sensor network in this paper. WSN is very vast and interesting field for researcher. Each packet is transfer from one sensor node to another node by using some routing protocol. One of these routing protocols is LEACH Protocol. This protocol is known as cluster - based protocol. All nodes are separated by clusters. A cluster can have at least two or more than two node. From these nodes one node work as a Cluster Head (CH) node. All remaining nodes in the cluster send and receive packets through Cluster Head (CH). These nodes cannot directly communicate with the nodes of other cluster.