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A Two-Phase Coverage-Enhancing Algorithm for Hybrid Wireless Sensor Networks.

Qingguo Zhang1,2, Mable P Fok3

  • 1College of Computer, Huazhong Normal University, Wuhan 430079, China. qgzhang@mail.ccnu.edu.cn.

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|January 12, 2017
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Summary
This summary is machine-generated.

This study introduces a two-phase algorithm to improve sensor network coverage by repositioning mobile sensors. The method effectively enhances area coverage while minimizing sensor movement, addressing deployment gaps in hybrid wireless sensor networks.

Keywords:
area coveragedifferential evolutionhybrid wireless sensor networkmobile sensorstatic sensor

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Network Engineering

Background:

  • Sensor networks are crucial for field coverage applications.
  • Random sensor deployment can lead to coverage holes, hindering network performance.
  • Hybrid wireless sensor networks offer a solution by enabling sensor repositioning.

Purpose of the Study:

  • To investigate mobile sensor redeployment for improved coverage in hybrid wireless sensor networks.
  • To propose a novel two-phase algorithm for enhancing network coverage.

Main Methods:

  • Phase one utilizes a differential evolution algorithm to identify potential target positions for mobile sensors.
  • Phase two employs an optimization scheme to refine target positions, minimizing the total movement distance.
  • The algorithm determines which mobile sensors to move and their final optimal locations.

Main Results:

  • The proposed algorithm significantly improves the area coverage rate.
  • It effectively reduces the average moving distance of mobile sensors.
  • Demonstrates superior performance in area coverage-distance rate and minimizes the number of moved sensors compared to other approaches.

Conclusions:

  • The two-phase coverage-enhancing algorithm is effective for hybrid wireless sensor networks.
  • It balances improved coverage with efficient sensor mobility.
  • Offers a practical solution for addressing coverage holes in sensor networks.