Abstract
Recently, heterogeneous wireless sensor network (HWSN) routing protocols have drawn more and more attention. Various HWSN routing protocols have been proposed to improve the performance of HWSNs. Among these protocols, hierarchical HWSN routing protocols can improve the performance of the network significantly. In this paper, we will evaluate three hierarchical HWSN protocols proposed recently—EDFCM, MCR, and EEPCA—together with two previous classical routing protocols—LEACH and SEP. We mainly focus on the round of the first node dies (also called the stable period) and the number of packets sent to sink, which is an important aspect to evaluate the monitoring ability of a protocol. We conduct a lot of experiments and simulations on Matlab to analyze the performance of the five routing protocols.
Highlights
In comparison with the homogeneous Wireless sensor networks (WSNs), the latest proposed heterogeneous wireless sensor network (HWSN) routing protocols have tried to extend the lifetime of network, prolong the stable period, and achieve the reliable data transmission by deploying the sensor nodes with different capabilities
The proposed cluster-based routing protocols to handle heterogeneity in WSNs mainly focus on three aspects: (1) electing the cluster head by the energy prediction scheme; (2) saving energy consumption by multihop between cluster head and sink; (3) using the evolutionary algorithms
stableaware evolutionary routing protocol (SAERP) combined the main idea of stable election protocol (SEP) and evolutionary algorithms (EAs), and SAERP mainly aimed at increasing the stability of the network
Summary
In comparison with the homogeneous WSNs, the latest proposed HWSN routing protocols have tried to extend the lifetime of network, prolong the stable period, and achieve the reliable data transmission by deploying the sensor nodes with different capabilities. The proposed protocols often cannot balance the energy consumption of sensor nodes efficiently. We will compare the performance of three proposed HWSN protocols recently together with two classical protocols in the same HWSN model. This paper aims to analyze which protocol can outperform others through comparisons under various scenarios, which will lead us to propose more energy-efficient protocols in HWSNs. 1.3.
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