SimpleMAC: A jamming-resilient MAC-layer protocol for wireless channel coordination

Sang Yoon Chang, Yih Chun Hu, Nicola Laurenti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In wireless networks, users share a transmission medium. To increase the eficiency of channel usage, wireless systems often use a Medium Access Control (MAC) protocol to per- form channel coordination by having each node announce its usage intentions; other nodes avoid making conicting trans- missions minimizing interference both to the node that has announced its intentions and to a node that cooperates by avoiding transmissions during the reserved slot. Tradition- ally, in a multi-channel environment, such announcements are made on a common control channel. However, this con- trol channel is vulnerable to jamming because its location is pre-assigned and known to attackers. Furthermore, the an- nouncements themselves provide information useful for jam- ming. In this paper, we focus on a situation where multiple wireless transmitters share spectrum in the presence of intel- ligent and possibly insider jammers capable of dynamically and adaptively changing their jamming patterns. We develop a framework for efiectively countering MAC- aware jamming attacks and then propose SimpleMAC, a protocol resilient to these attacks. SimpleMAC consists of two schemes (the Simple Transmitter Strategy and the Sim- ple Signaling Scheme) that are easily analyzed using game theory, and show the optimal adversarial behavior under these protocols. We evaluate our schemes mathematically, through Monte Carlo simulations, and by implementation on the WARP software-defined radio platform. SimpleMAC provides very rapid improvement over the alternative of not using any MAC protocol, and eventually converges to opti- mal performance (over six-fold improvement in SINR, 50% gains in Shannon capacity in a realistic mobile scenario).

Original languageEnglish (US)
Title of host publicationMobiCom'12 - Proceedings of the 18th Annual International Conference on Mobile Computing and Networking
Pages77-88
Number of pages12
DOIs
StatePublished - Sep 28 2012
Event18th Annual International Conference on Mobile Computing and Networking, MobiCom 2012 - Istanbul, Turkey
Duration: Aug 22 2012Aug 26 2012

Publication series

NameProceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM

Other

Other18th Annual International Conference on Mobile Computing and Networking, MobiCom 2012
Country/TerritoryTurkey
CityIstanbul
Period8/22/128/26/12

Keywords

  • Jamming
  • MAC-layer
  • Wireless

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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