Wireless Sensor Network (WSN) contain some of sensor nodes which interact with others through physical parameters like sunlight, wind, vibration, humidity etc. From Base Station (BS) Sensor node sends and receives data to or from wireless stations. Clustering schemes in WSN are two types homogeneous schemes and heterogeneous schemes. In Homogeneous scheme initial energy is same for each node but in heterogeneous scheme initial energy is different for each node. We analyze the different protocols i.e. LEACH, PEGASIS and finally modified the exiting protocol called improved energy balanced routing protocol (IEBRP). This IEBRP is based on cluster formation, selection of CH, cluster routing and other aspects i.e. sink node of LEACH protocol. Considering different threshold value, energy value and number of rounds we concluded that IEBRP survives long time, sends more number of packets to BS and more energy consumption.