On Private Broadcasting over Independent Parallel Channels Conference Paper

abstract

• We study private broadcasting of two messages to two groups of users over reversely degraded parallel channels. Group 1 has two users, both interested in a common message whereas group 2 has only one user. The message for each group of users needs to be kept confidential from the other group. We characterize the capacity region for a special degradation structure of the channels and establish the optimality of a superposition codebook where codewords of a secure product-codebook form the cloud centers and codewords of a secure multicast codebook form the satellite codewords. An extension to Gaussian channels with a sum-power constraint is also obtained, where the optimality of Gaussian codebooks is established using an extremal inequality. 2012 IEEE.

name of conference

• 2012 IEEE International Symposium on Information Theory Proceedings

authors

• Liu, Tie

published proceedings

• 2012 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT)

author list (cited authors)

• Khisti, A., & Liu, T.

citation count

• 2

complete list of authors

• Khisti, Ashish||Liu, Tie

publication date

• January 2012

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

Digital Object Identifier (DOI)

• 10.1109/isit.2012.6284225

International Standard Book Number (ISBN) 13

• 9781467325790

start page

• 433

end page

• 437