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.
Original language | English |
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Article number | 6168835 |
Pages (from-to) | 3419-3429 |
Number of pages | 11 |
Journal | IEEE Transactions on Information Theory |
Volume | 58 |
Issue number | 6 |
DOIs | |
State | Published - 2012 |
Keywords
- Dirty-paper coding
- information-theoretic security
- linear deterministic model
- side information
- wiretap channel
All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Science Applications
- Library and Information Sciences