“Performance Enhancement of Wireless Sensor Networks Cluster-based Routing Protocol”

Abstract

A Wireless sensor network (WSN) consists of a huge number of deployed sensor nodes that have many capabilities such as sensing, computation, and wireless communication among each other or with a faraway Base-Station (BS). Wireless communication is the most power dissipation operation in WSNs; therefore energy conservation is an essential issue in the design of the routing protocol. Many proposed routing protocols were published in this area to achieve minimum energy dissipation for WSNs nodes. In this thesis a Cluster-Based (CB) routing protocol, namely Percentage LEACH (PR-LEACH), which is an enhanced image of the common routing protocol Low Energy Adaptive Clustering Hierarchy (LEACH) is proposed. LEACH selects the cluster-heads (CHs) based on random probability that leads to bad energy distribution among all nodes of the network, while PR-LEACH considers the residual energy at each sensor node while selecting the CHs in order to balance energy dissipation among all of the nodes, extend the network lifetime as one unit, and to minimize the Dead-Spots (DSs). MATLAB simulation shows that the proposed energy consideration protocol, PR-LEACH, provides better performance compared to LEACH protocol.