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Deployment-based lifetime optimization model for homogeneous Wireless Sensor Network under retransmission.

Ruiying Li1, Xiaoxi Liu2, Wei Xie3

  • 1School of Reliability and Systems Engineering, Beihang University, No.37 Xueyuan Road, Haidian District, Beijing 100191, China. liruiying@buaa.edu.cn.

Sensors (Basel, Switzerland)
|December 17, 2014
PubMed
Summary
This summary is machine-generated.

Optimizing sensor deployment in Wireless Sensor Networks (WSNs) by considering data retransmissions significantly extends network lifetime. Non-uniform deployment requires fewer sensors than uniform for the same network longevity.

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Network Engineering

Background:

  • Wireless Sensor Networks (WSNs) are crucial for monitoring applications.
  • Extending WSN lifetime is vital, often achieved through sensor deployment optimization.
  • Previous studies often neglect energy consumption from data retransmissions.

Purpose of the Study:

  • To propose sensor deployment models for maximizing Wireless Sensor Network (WSN) lifetime.
  • To incorporate data retransmission energy consumption into lifetime optimization.
  • To analyze uniform and non-uniform deployment schemes for a circular target area.

Main Methods:

  • Developed sensor deployment models based on regular hexagonal grids for homogeneous WSNs.
  • Formulated optimization models for uniform and non-uniform deployment, considering coverage, connectivity, and success transmission rate.
  • Quantified energy consumption at each sensor location based on data transmission analysis within a gathering cycle.

Main Results:

  • Considering data retransmission is meaningful for WSN lifetime optimization.
  • Non-uniform deployment requires significantly fewer sensors than uniform deployment for the same lifetime requirement.
  • The proposed hexagonal grid deployment model shows advantages over random schemes.

Conclusions:

  • Data retransmission is a critical factor in WSN lifetime optimization.
  • Non-uniform sensor deployment offers superior efficiency in terms of sensor count for a given network lifetime.
  • The proposed deployment strategy enhances WSN longevity and resource utilization.