On the tradeoffs between network state knowledge and secrecy

Samir M. Perlaza, Arsenia Chorti, H. Vincent Poor, Zhu Han

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

In this paper, the impact of network-state knowledge on the feasibility of secrecy is studied in the context of non-colluding active eavesdropping. The main contribution is the investigation of several scenarios in which increasing the available knowledge at each of the network components leads to some paradoxical observations in terms of the average secrecy capacity and average information leakage. These observations are in the context of a broadcast channel similar to the time-division downlink of a single-cell cellular system. Here, providing more knowledge to the eavesdroppers makes them more conservative in their attacks, and thus, less harmful in terms of average information leakage. Similarly, providing more knowledge to the transmitter makes it more careful and less willing to transmit, which reduces the expected secrecy capacity. These findings are illustrated with a numerical analysis that shows the impact of most of the network parameters in the feasibility of secrecy.

Original languageEnglish (US)
Article number6618596
JournalInternational Symposium on Wireless Personal Multimedia Communications, WPMC
StatePublished - Nov 18 2013
Event2013 16th International Symposium on Wireless Personal Multimedia Communications, WPMC 2013 - Co-located with Global Wireless Summit 2013 - Atlantic City, NJ, United States
Duration: Jun 24 2013Jun 27 2013

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Human-Computer Interaction

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