SimpleMAC: A simple wireless MAC-layer countermeasure to intelligent and insider jammers

Sang Yoon Chang, Yih Chun Hu, Nicola Laurenti

Research output: Contribution to journalArticle

Abstract

In wireless networks, users share a transmission medium. For efficient channel use, wireless systems often use a Medium Access Control (MAC) protocol to perform channel coordination by having each node announce its usage intentions and other nodes avoid making conflicting transmissions. Traditionally, such announcements are made on a common control channel. However, this control channel is vulnerable to jamming because its location is pre-assigned and known to attackers. Furthermore, the announcements themselves provide information useful for jamming. We focus on a situation where transmitters share spectrum in the presence of intelligent and insider jammers capable of adaptively changing their jamming patterns. Despite the complex threat model, we propose a simple MAC scheme, called SimpleMAC, that effectively counters network compromise and MAC-aware jamming attacks. We then study the optimal adversarial behavior and analyze the performance of the proposed scheme theoretically, through Monte Carlo simulations, and by implementation on the WARP software-defined radio platform. In comparison to the Nash equilibrium alternative of disabling the MAC protocol, SimpleMAC quickly attains vastly improved performance and converges to the optimal solution (over six-fold improvement in SINR and 50% gains in channel capacity in a realistic mobile scenario).

Original languageEnglish (US)
Article number7091035
Pages (from-to)1095-1108
Number of pages14
JournalIEEE/ACM Transactions on Networking
Volume24
Issue number2
DOIs
StatePublished - Apr 2016

Keywords

  • Jamming
  • medium access control (MAC)
  • network compromise
  • wireless network

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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