Inner and Outer Bounds for the Public Information Embedding Capacity Region Under Multiple Access Attacks

Details Inner and Outer Bounds for the Public Information Embedding Capacity Region Under Multiple Access Attacks Inner and Outer Bounds for the Public Information Embedding Capacity Region Under Multiple Access Attacks

2010-03-08

arxiv.org/abs/1003.1655v1

Computer Science

Information Theory

Technical Report

Scientific paper

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.

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