MIMO Gaussian broadcast channels with common, private and confidential messages

Ziv Goldfeld

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The two-user multiple-input multiple-output (MIMO) Gaussian broadcast channel (BC) with common, private and confidential messages is considered. The transmitter sends a common message to both users, a confidential message to User 1 and a private (non-confidential) message to User 2. The secrecy-capacity region is characterized by showing that certain inner and outer bounds coincide and that the boundary points are achieved by Gaussian inputs. The proof relies on factorization of upper concave envelopes and a variant of dirty-paper coding (DPC). The entire region is exhausted by using DPC to cancel out the signal of the non-confidential message at Receiver 1, making DPC against the signal of the confidential message unnecessary. The secrecy-capacity results are visualized using a numerical example.

Original languageEnglish
Title of host publication2016 IEEE Information Theory Workshop, ITW 2016
PublisherInstitute of Electrical and Electronics Engineers
Pages41-45
Number of pages5
ISBN (Electronic)9781509010905
DOIs
StatePublished - 21 Oct 2016
Event2016 IEEE Information Theory Workshop, ITW 2016 - Cambridge, United Kingdom
Duration: 11 Sep 201614 Sep 2016

Publication series

Name2016 IEEE Information Theory Workshop, ITW 2016

Conference

Conference2016 IEEE Information Theory Workshop, ITW 2016
Country/TerritoryUnited Kingdom
CityCambridge
Period11/09/1614/09/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Software
  • Signal Processing

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