Secret Writing on Dirty Paper: A Deterministic View
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Recently there has been a lot of success in using the deterministic approach to provide approximate characterization of Gaussian network capacity. In this paper, we take a deterministic view and revisit the problem of wiretap channel with side information. A precise characterization of the secrecy capacity is obtained for a linear deterministic model, which naturally suggests a coding scheme which we show to achieve the secrecy capacity of the degraded Gaussian model (dubbed as "secret writing on dirty paper") to within (1/2) log 3 bits. 2011 IEEE.
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2011 IEEE International Symposium on Information Theory Proceedings