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Embedding Trust in the Media Access Control Protocol for Wireless Networks.

Chaminda Alocious1, Hannan Xiao2, Bruce Christianson1

  • 1Department of Computer Science, University of Hertfordshire, Hatfield AL10 9AB, UK.

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|January 25, 2025
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Summary
This summary is machine-generated.

This study introduces a novel trust-incorporated MAC protocol (TMAC) to address misbehavior in wireless networks. TMAC effectively detects and mitigates non-cooperative nodes, improving network performance for trustworthy devices.

Keywords:
CSMA/CAIEEE 802.11MACnetwork securitytrustwireless networks

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Area of Science:

  • Computer Science
  • Network Engineering
  • Cybersecurity

Background:

  • IEEE 802.11 (CSMA/CA) protocols assume cooperative nodes.
  • Non-cooperative nodes can disrupt wireless network performance.
  • Existing research insufficiently addresses receiver misbehavior and complex node deviations.

Purpose of the Study:

  • To propose a novel trust-incorporated MAC protocol (TMAC) for detecting and mitigating complex node misbehavior in distributed wireless networks.
  • To enhance the security and efficiency of wireless networks by addressing the limitations of the standard IEEE 802.11 protocol.
  • To remove the assumption of trusted receivers in wireless communication.

Main Methods:

  • Developed TMAC, integrating a trust model for neighbor assessment and verifiable backoff value generation.
  • Implemented a collaborative penalty scheme to penalize protocol deviations, removing the trusted receiver assumption.
  • Introduced a periodic diagnosis mechanism for reassessing and reclassifying neighbor trust levels.

Main Results:

  • TMAC effectively diagnoses and mitigates selfish or misbehaving nodes in distributed wireless networks.
  • Simulation results demonstrate improved performance for trustworthy, well-behaving nodes.
  • TMAC accurately detects sender, receiver, and colluding node misbehavior at the MAC layer without trusting communicating parties.

Conclusions:

  • TMAC offers a robust solution for enhancing wireless network security and performance by addressing node misbehavior.
  • The protocol's trust-based mechanisms and collaborative penalties effectively manage non-cooperative behaviors.
  • TMAC significantly improves the reliability of wireless networks by ensuring fair resource allocation and mitigating disruptions.