Performance Evaluation of Leach in Wireless Sensor Network

Wireless sensor network consists of large number of sensor nodes which is used to monitor physical or environmental conditions such as temperature, sound, vibration, pressure and cooperatively compute and transfer it to base station . These sensor nodes are sensitive to energy consumption and gets exhausted on working. So we need to emphasize on reducing energy dissipation of sensor nodes to improve the network lifetime . Various routing protocols are developed to enhance network scalability and stability. For this purpose we proposed a new routing method which improves the life span of network, its data transmitting capability with low energy consumption. It is an improvised version of LEACH protocol which conserves energy by load balancing and thus improving the lifetime of network.[10] Reduction of energy consumption is achieved with the help of TDMA scheduling. Time division multiple access (TDMA)-based MAC can potentially reduce the delay and provide real-time guarantees as well as save power by eliminating collisions The performance evaluation of protocol is based on simulation test performed in network simulator 2 (NS2) to prove the effectiveness of this proposed method in terms of network lifetime and energy efficiency.