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2006
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Design of Collusion-Free Codes Based on MAI-Free Principle

12 years 5 months ago
Design of Collusion-Free Codes Based on MAI-Free Principle
The design of collusion-free codes for data hiding systems is investigated, and two new collusion-free codes are proposed in this work. They are called the Orthogonal Spreading (OS) codes and the Orthogonal Spreading codes with Inverse discrete Fourier Transform (OSIFT). The design of OSIFT codes is motivated by the recently developed multi-access-interference-free (MAI-free) codes in an orthogonal frequency division multiplexing (OFDM) wireless communication system. Code embedding and detection algorithms are described. It is shown by simulation that both OS and OSIFT codes are robust against collusion attacks in an exemplary audio watermarking system.
Byung-Ho Cha, C. C. Jay Kuo
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where iihmsp
Authors Byung-Ho Cha, C. C. Jay Kuo
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