HSEP: Heterogeneity-aware Hierarchical Stable Election Protocol for WSNs

TL;DR

This paper introduces HSEP, a hierarchical clustering protocol for heterogeneous wireless sensor networks that improves energy efficiency, prolongs network stability, and increases throughput compared to existing protocols.

Contribution

HSEP is a novel hierarchical protocol that accounts for heterogeneity in node energy levels, enhancing energy efficiency and network lifetime in WSNs.

Findings

HSEP extends network stability period.

HSEP increases overall network lifetime.

HSEP achieves higher throughput than existing protocols.

Abstract

Wireless Sensor Networks (WSNs) are increasing to handle complex situations and functions. In these networks some of the nodes become Cluster Heads (CHs) which are responsible to aggregate data of from cluster members and transmit it to Base Stations (BS). Those clustering techniques which are designed for homogenous network are not enough efficient for consuming energy. Stable Election Protocol (SEP) introduces heterogeneity in WSNs, consisting of two type of nodes. SEP is based on weighted election probabilities of each node to become CH according to remaining energy of nodes. We propose Heterogeneity-aware Hierarchal Stable Election Protocol (HSEP) having two level of energies. Simulation results show that HSEP prolongs stability period and network lifetime, as compared to conventional routing protocols and having higher average throughput than selected clustering protocols in WSNs.