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Secure Successive Refinement with Degraded Side Information
- Publication Year :
- 2014
-
Abstract
- In this paper, we investigate the problem of successive refinement with side information (SI) under secrecy constraint. In particular, under classical successive refinement coding scheme, there are degraded SI sequences Y-n and Z(n) at two decoders and E-n at the eavesdropper. Based on the status of two switches, three different cases are investigated. In case 1 and 3, the eavesdropper only observes output of encoder 1 and 2, respectively, while in case 2, the eavesdropper observes outputs of both encoder 1 and 2. The Markov chain X - Y - (Z, E) holds in all cases. The equivocation is measured by the normalized entropy of source sequence conditioned on the observation of eavesdropper. We completely characterize the rate-distortion-equivocation regions for all three cases, and show that layered coding is optimal. Finally, a binary source example is given.<br />QC 20150227
Details
- Database :
- OAIster
- Notes :
- Xu, Derek, Kittichokechai, Kittipong, Oechtering, Tobias J., Skoglund, Mikael
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1234891484
- Document Type :
- Electronic Resource
- Full Text :
- https://doi.org/10.1109.ISIT.2014.6875319