Retroactive antijamming for MISO broadcast channels

Saidhiraj Amuru, Ravi Tandon, Richard Michael Buehrer, Thomas Charles Clancy

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Jamming attacks can significantly impact the performance of wireless communication systems. In addition to reducing the capacity, such attacks may lead to insurmountable overhead in terms of retransmissions and increased power consumption. In this paper, we consider the multiple-input single-output (MISO) broadcast channel (BC) in the presence of a jamming attack in which a subset of the receivers can be jammed at any given time. Further, countermeasures for mitigating the effects of such jamming attacks are presented. The effectiveness of these antijamming countermeasures is quantified in terms of the degrees-of-freedom (DoF) of the MISO BC under various assumptions regarding the availability of the channel state information (CSIT) and the jammer state information at the transmitter (JSIT). The main contribution of this paper is the characterization of the DoF region of the two user MISO BC under various assumptions on the availability of CSIT and JSIT. Partial extensions to the multiuser broadcast channels are also presented.

Original languageEnglish (US)
Article number6804012
Pages (from-to)3593-3619
Number of pages27
JournalIEEE Transactions on Information Theory
Issue number6
StatePublished - Jun 2014
Externally publishedYes


  • MIMO
  • broadcast channel
  • degrees of freedom
  • interference alignment
  • jamming

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences


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