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An Energy-Saving Forwarding Mechanism Based on Clustering for Opportunistic Networks.

Gilmara Santos1, Diogo Soares1, Celso Carvalho2

  • 1Institute of Computing, Federal University of Amazonas, Manaus 69080-900, Brazil.

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Summary

This study introduces eGPDMI, a routing mechanism for Opportunistic Networks (OppNets). It enhances message delivery probability and optimizes energy consumption by grouping nodes based on energy levels and interests.

Keywords:
clusteringenergy-savingopportunistic networks

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Area of Science:

  • Computer Science
  • Network Engineering

Background:

  • Opportunistic Networks (OppNets) rely on node mobility and contact for message exchange.
  • Node collaboration is crucial for OppNets performance, but energy constraints can hinder cooperation.

Purpose of the Study:

  • To propose an energy-efficient routing mechanism, eGPDMI, for Opportunistic Networks.
  • To improve message delivery probability while optimizing node energy consumption in OppNets.

Main Methods:

  • Developed the eGPDMI routing mechanism, which employs clustering to group nodes by energy level and interests.
  • Utilized questionnaire application and factorial design experiments to analyze the impact of energy levels.
  • Evaluated eGPDMI performance using real-world mobility scenarios.

Main Results:

  • The eGPDMI mechanism effectively reduces the degradation of message delivery probability as the minimum energy threshold for cooperation increases.
  • Retaining messages in high-energy nodes improves network performance and overcomes disconnection issues.

Conclusions:

  • eGPDMI offers a viable solution for enhancing message delivery and energy efficiency in OppNets.
  • Node energy level is a critical factor influencing cooperation and network performance in OppNets.