Security vulnerability and countermeasures of frequency offset correction in 802.11a systems

  title={Security vulnerability and countermeasures of frequency offset correction in 802.11a systems},
  author={Hanif Rahbari and Marwan Krunz and Loukas Lazos},
  journal={IEEE INFOCOM 2014 - IEEE Conference on Computer Communications},
Frequency offset (FO) is an inherent feature of wireless communications. It results from differences in the operating frequency of different radio oscillators. Failure to compensate for the FO may lead to a decoding failure, particularly in OFDM systems. IEEE 802.11a/g systems use a globally known preamble to deal with this issue. In this paper, we demonstrate how an adversary can exploit the structure and publicity of 802.11a's frame preamble to launch a low-power reactive jamming attack… CONTINUE READING


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