NDLI: The Secrecy Capacity Region of the Gaussian MIMO Broadcast Channel

Content Provider	IEEE Xplore Digital Library
Author	Bagherikaram, G. Motahari, A.S. Khandani, A.K.
Copyright Year	1963
Abstract	In this paper, we consider a scenario where a source node wishes to broadcast two confidential messages for two respective receivers via a Gaussian multiple-input multiple-output (MIMO) broadcast channel. An eavesdropper also receives the transmitted signal via another MIMO channel. We first consider the discrete memoryless channel and obtain the capacity region of the degraded channel. The secret dirty paper coding (SDPC) region as an achievable rate region for the general discrete channel is introduced. Relying on the results for the discrete channel, we fully characterize the secrecy capacity region of MIMO broadcast channel. It is shown that the SDPC scheme is optimal. The converse part of the proof relies on the generalized Costa's entropy power inequality and a new channel enhancement strategy in which we only need to enhance the channels of the legitimate receivers, and the channel of the eavesdropper remains unchanged.
Sponsorship	IEEE Information Theory Society
Starting Page	2673
Ending Page	2682
Page Count	10
File Size	2731539
File Format	PDF
ISSN	00189448
Volume Number	59
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Covariance matrix Vectors Receivers Encoding Transmitters Noise wiretap channel Dirty paper coding entropy power inequality (EPI) multiple-input multiple-output (MIMO) broadcast channel (BC) secrecy capacity region
Content Type	Text
Resource Type	Article
Subject	Library and Information Sciences Information Systems Computer Science Applications

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