Secrecy capacity region of parallel broadcast channels

Yingbin Liang, H. Vincentx Poor, Shlomo Shamai

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

5 Scopus citations

Abstract

The parallel broadcast channel with confidential messages (BCC) is investigated, where a source node transmits to two receivers (receivers 1 and 2) over multiple independent subchannels. The source node has common information for both receivers, and has confidential information intended only for receiver 1. The confidential information needs to be kept as secret as possible from receiver 2. The secrecy capacity region of the parallel BCC is established. It is shown that independent input distribution for each subchannel is optimal It is also shown that the secrecy capacity region of the parallel BCC can be larger than the sum of the secrecy capacity regions of the subchannels. The secrecy capacity region is further derived for the parallel BCC with degraded subchannels. Applications of these results to the fading BCC are also discussed.

Original languageEnglish (US)
Title of host publication2007 Information Theory and Applications Workshop, Conference Proceedings, ITA
Pages245-250
Number of pages6
DOIs
StatePublished - Dec 1 2007
Event2007 Information Theory and Applications Workshop, ITA - San Diego, CA, United States
Duration: Jan 29 2007Feb 2 2007

Publication series

Name2007 Information Theory and Applications Workshop, Conference Proceedings, ITA

Other

Other2007 Information Theory and Applications Workshop, ITA
CountryUnited States
CitySan Diego, CA
Period1/29/072/2/07

ASJC Scopus subject areas

  • Information Systems
  • Information Systems and Management

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    Liang, Y., Poor, H. V., & Shamai, S. (2007). Secrecy capacity region of parallel broadcast channels. In 2007 Information Theory and Applications Workshop, Conference Proceedings, ITA (pp. 245-250). [4357587] (2007 Information Theory and Applications Workshop, Conference Proceedings, ITA). https://doi.org/10.1109/ITA.2007.4357587