An enhancement of MOD-LEACH protocol for wireless sensor network

Since sensor nodes are energy constrained as they have limited power resources, they turn off their energy earlier. So, it will be so hard and so expensive to change or recharge their batteries from one time to another especially for a large scale networks. Therefore, prolonging their lifetime is a key issue that should be highly considered. As a solution for this problem is to manage intelligently the remain power in the node in order to increase as much as possible not only the lifetime of that node but also the lifetime of the whole network. The major source of energy dissipation is during the transmission of data packets. After studying the major sources of energy wasting and after providing the existent energy management methods, efficient routing protocol was proposed as an important challenge in a network area to reduce energy consumption. Hierarchical routing protocols are considered as the most suitable protocol implemented for wireless sensor networks. In this paper, a proposed protocol is developed to avoid some problems related to the routing of wireless sensors network. A clustering algorithm that aims to balance the energy consumption among all sensor nodes and to achieve an improvement on the network lifetime.