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An Improved Energy-Efficient Routing Protocol for Wireless Sensor Networks.

Yang Liu1, Qiong Wu2, Ting Zhao3

  • 1College of Electronic Information Engineering, Inner Mongolia University, Hohhot 010021, China. yangliu@imu.edu.cn.

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|October 24, 2019
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Summary
This summary is machine-generated.

This study introduces an improved energy-efficient LEACH (IEE-LEACH) protocol for wireless sensor networks (WSNs). The novel protocol significantly reduces energy consumption by optimizing cluster head selection and communication strategies.

Keywords:
energy efficiencynetwork lifetimerouting protocolwireless sensor networks

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Area of Science:

  • Computer Science
  • Wireless Sensor Networks
  • Network Protocols

Background:

  • Cluster-based hierarchical routing protocols are crucial for reducing energy consumption in wireless sensor networks (WSNs).
  • The Low-Energy Adaptive Clustering Hierarchy (LEACH) protocol is a common WSN architecture, but its energy efficiency can be improved by optimizing cluster head distribution.
  • Existing LEACH protocols may increase network energy consumption due to suboptimal cluster head rotation and selection.

Purpose of the Study:

  • To propose a novel routing protocol, Improved Energy-Efficient LEACH (IEE-LEACH), to enhance the energy efficiency of WSNs.
  • To reduce overall sensor energy consumption in WSNs through optimized cluster head selection and network communication.
  • To address the limitations of existing LEACH protocols by incorporating residual node energy and network average energy.

Main Methods:

  • The IEE-LEACH protocol considers residual node energy and average network energy for improved performance.
  • It optimizes the number of cluster heads (CHs) and restricts nodes near the base station (BS) from joining clusters.
  • A new threshold is employed for electing CHs, and hybrid communication (single, multi-hop) is utilized to enhance energy efficiency.

Main Results:

  • Simulation results indicate that the proposed IEE-LEACH protocol substantially reduces WSN energy consumption compared to existing protocols.
  • The protocol effectively manages energy by considering node residual energy and network average energy.
  • Optimized CH selection and communication strategies contribute to significant energy savings.

Conclusions:

  • The IEE-LEACH protocol offers a significant improvement in energy efficiency for wireless sensor networks.
  • By optimizing cluster head selection and communication, the protocol effectively reduces sensor energy consumption.
  • IEE-LEACH presents a viable solution for extending the operational lifetime of WSNs.