Abstract
Efficient energy utilization and network life prolongation are primary objectives to be considered when designing a Wireless Sensor Network. Cluster-based routing protocols are most suitable for achieving such goals. Energy and Optimal Inter Cluster Head Distance (EOICHD) is a cluster-based hierarchical routing protocol inspired by the Low-Energy Adaptive Clustering Hierarchy (LEACH) protocol. EOICHD resolves the problems associated with LEACH protocol, such as selecting cluster head nodes in close proximity. By carefully selecting the cluster head nodes based on residual energy and optimal inter-cluster head distance, EOICHD ensures that selected cluster head nodes are separated by a certain optimal distance. This approach ensures uniform distribution of cluster head nodes across the entire network. The study of the EOICHD protocol presented so far is not sufficient. Hence, in this paper, we propose three variants of EOICHD protocol to understand its behavior in a better manner. A comparative analysis of all three EOICHD variants, LEACH and LEACH-central constrained (LEACH-C) protocol, is performed by considering comparative parameters such as alive nodes, cumulative network energy, data packets arrived at the base station, and stability of the network.
Highlights
A Wireless Sensor Network (WSN) constitutes several sensor nodes forming a network amongst themselves and sensing information from their surrounding environment
Data received by Base Station (BS): The data sensed by nodes will be transmitted to BS as packets
The main reason for the under performance of Low-Energy Adaptive Clustering Hierarchy (LEACH) and LEACH-central constrained (LEACH-C) protocols is that nodes very close to one another are selected as Cluster Heads (CH), random and improper distribution of CHs, which may not cover some part of the network
Summary
A Wireless Sensor Network (WSN) constitutes several sensor nodes (or nodes) forming a network amongst themselves and sensing information from their surrounding environment. EOICHD focuses on cluster quality and ensures that the selected cluster head has adequate residual energy to perform the tasks of sensing and data transmission. Another motivating factor is to check to what extent the cluster separation impacts the network’s energy consumption pattern.
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