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24 April 2024

» arxiv » 1003.1655

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Inner and Outer Bounds for the Public Information Embedding Capacity Region Under Multiple Access Attacks
Yangfan Zhong ; Yadong Wang ; Fady Alajaji ; Tamas Linder ;
Date:	8 Mar 2010
Abstract:	We consider a public multi-user information embedding (watermarking) system in which two messages (watermarks) are independently embedded into two correlated covertexts and are transmitted through a multiple-access attack channel. The tradeoff between the achievable embedding rates and the average distortions for the two embedders is studied. For given distortion levels, inner and outer bounds for the embedding capacity region are obtained in single-letter form. Tighter bounds are also given for independent covertexts.
Source:	arXiv, 1003.1655
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