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A mobile anchor assisted localization algorithm based on regular hexagon in wireless sensor networks.

Guangjie Han¹, Chenyu Zhang², Jaime Lloret³

¹Department of Information & Communication Systems, Hohai University, Changzhou 213022, China ; Guangdong Provincial Key Lab of Petrochemical Equipment Fault Diagnosis, Guangdong University of Petrochemical Technology, Maoming 525000, China.

Thescientificworldjournal

|August 19, 2014

Summary

This summary is machine-generated.

This study introduces a mobile anchor assisted localization algorithm for wireless sensor networks (WSNs). The MAALRH algorithm improves localization accuracy and ratio using mobile GPS anchors and trilateration.

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Area of Science:

Wireless Sensor Networks (WSNs)
Localization Technologies
Geospatial Positioning Systems

Background:

Localization is crucial for location-aware applications in WSNs.
GPS units on all nodes are infeasible due to cost and power constraints in large-scale WSNs.
Mobile anchors with GPS offer a viable solution for localizing unknown nodes.

Purpose of the Study:

To propose a novel mobile anchor assisted localization algorithm for 2D WSNs.
To enhance coverage across the entire monitoring area using a boundary compensation method.
To evaluate the proposed algorithm's performance against existing methods.

Main Methods:

Developed the Mobile Anchor Assisted Localization Algorithm based on Regular Hexagon (MAALRH).
Utilized mobile anchors broadcasting GPS locations to assist unknown nodes.
Employed trilateration for position calculation by unknown nodes.
Implemented a boundary compensation method for full area coverage.

Main Results:

MAALRH demonstrates high localization ratio and accuracy.
Performance is effective when communication range meets trajectory resolution requirements.
Comparative analysis shows MAALRH outperforms HILBERT, CIRCLES, and S-CURVES algorithms.

Conclusions:

MAALRH is an efficient algorithm for WSN localization using mobile anchors.
The algorithm provides a practical solution for large-scale WSN deployment.
Achieves superior localization performance under specific network conditions.