Secret communication on interference channels
Yates, R.D.; Tse, D.; Zang Li
Information Theory, 2008. ISIT 2008. IEEE International Symposium on
Volume , Issue , 6-11 July 2008 Page(s):374 - 378
Digital Object Identifier   10.1109/ISIT.2008.4595011
Summary:We examine secret communication over interference channels, starting with a model in which communication is semi-secret in that secrecy may depend on other transmitters to follow an agreed-upon signaling strategy. We compare this to robustly-secret communication, in which each user must allow for other users to deviate unilaterally from an agreed-upon strategy to enable better overhearing, as long as that alternate strategy impairs neither the secrecy rate of its own link nor the reliability of any other communicating links. For a particular two-user binary expansion deterministic interference channel, we find and compare the semi-secret and robustly-secret capacity regions.

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