Efficient OFDM denial in the absence of channel information

Christopher Mueller-Smith, Wade Trappe

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

9 Scopus citations

Abstract

Many modern communications systems use Orthogonal Frequency Division Modulation (OFDM). These systems need to synchronize the receiver and equalize the channel to achieve good performance. The algorithms used to perform timing synchronization and channel estimation/equalization typically are designed without considering whether an adversarial signal could disrupt these subsystems. In typical scenarios, a jammer would not have reliable (or any) knowledge of the channels filtering the target or jamming signals. Thus, in this paper, we consider attack strategies that do not require channel knowledge. We study the efficiency of several jamming strategies targeting each subsystem as measured by the peak and average signal-to-jamming ratio (SJR) required to achieve signal denial for each method and find that jamming the timing can be substantially more efficient than other jamming strategies. We also discuss modifications to the jamming strategies that might be necessary for real-world operation.

Original languageEnglish (US)
Title of host publicationProceedings - 2013 IEEE Military Communications Conference, MILCOM 2013
Pages89-94
Number of pages6
DOIs
StatePublished - Dec 1 2013
Externally publishedYes
Event2013 IEEE Military Communications Conference, MILCOM 2013 - San Diego, CA, United States
Duration: Nov 18 2013Nov 20 2013

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

Other2013 IEEE Military Communications Conference, MILCOM 2013
CountryUnited States
CitySan Diego, CA
Period11/18/1311/20/13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Jamming
  • OFDM
  • Pilot tones
  • Synchronization

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