On the effect of colluding eavesdroppers on secrecy capacity scaling

O. Ozan Koyluoglu, C. Emre Koksal, Hesham El Gamal

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

7 Scopus citations

Abstract

In a powerful secrecy attack, eavesdroppers can collude, i.e., they can share their observations. Securing information in such a scenario will be an even more challenging task compared to non-colluding case. We here analyze the effect of eavesdropper collusion on the achievable performance in both the path loss and er-godic multi-path fading models. We provide two results: 1) For the Poisson point process model in a random extended network, if the legitimate nodes have unit intensity (λ = 1) and the colluding eavesdroppers have an intensity of λe = O ((log n)-(2+p)) for any p > 0, almost all of the nodes can achieve a secure rate of Ω (1/√n); and 2) In the K-user Gaussian interference channel with E external colluding eavesdroppers, a secure degrees of freedom of η = [1/2 - E/K]+ per frequency-time slot is achievable for each user in the ergodic setting (in the absence of the eavesdropper channel state information).

Original languageEnglish (US)
Title of host publication2010 European Wireless Conference, EW 2010
Pages790-795
Number of pages6
DOIs
StatePublished - 2010
Event2010 European Wireless Conference, EW 2010 - Lucca, Italy
Duration: Apr 12 2010Apr 15 2010

Publication series

Name2010 European Wireless Conference, EW 2010

Other

Other2010 European Wireless Conference, EW 2010
CountryItaly
CityLucca
Period4/12/104/15/10

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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  • Cite this

    Koyluoglu, O. O., Koksal, C. E., & Gamal, H. E. (2010). On the effect of colluding eavesdroppers on secrecy capacity scaling. In 2010 European Wireless Conference, EW 2010 (pp. 790-795). [5483463] (2010 European Wireless Conference, EW 2010). https://doi.org/10.1109/EW.2010.5483463