Title :
Secret Writing on Dirty Paper: A Deterministic View
Author :
El-Halabi, Mustafa ; Liu, Tie ; Georghiades, Costas N. ; Shamai, Shlomo
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
6/1/2012 12:00:00 AM
Abstract :
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 half a bit.
Keywords :
Gaussian processes; deterministic algorithms; encoding; telecommunication channels; Gaussian network capacity; coding scheme; degraded Gaussian model; dirty paper; linear deterministic model; secrecy capacity; secret writing; side information; wiretap channel; Channel capacity; Encoding; Indexes; Interference; Receivers; Vectors; Writing; Dirty-paper coding; information-theoretic security; linear deterministic model; side information; wiretap channel;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2012.2190820
