Title :
Reduction of Interference for CDMA-Based Fingerprinting Scheme Based on Random Permutation
Author :
Kuribayashi, Minoru
Author_Institution :
Grad. Sch. of Eng., Kobe Univ., Kobe, Japan
Abstract :
In the CDMA-based fingerprinting scheme, a fingerprint sequence is composed of two kinds of spread spectrum sequences generated from DCT basic vectors and PN sequences. In this study, the DCT basic vectors are randomly permuted in order to reduce the interference among colluders´ fingerprint sequences, which effect is similar to the interleaver used in Turbo codes. Our experimental results reveal that the false-positive probability is reduced without degrading the traceability.
Keywords :
code division multiple access; discrete cosine transforms; interleaved codes; probability; radiofrequency interference; random processes; spread spectrum communication; telecommunication security; turbo codes; CDMA-based fingerprinting scheme; DCT basic vectors; PN sequences; false-positive probability; fingerprint sequence; interference reduction; random permutation; spread spectrum sequences; turbo codes; Discrete cosine transforms; Interference; Modulation; Multimedia communication; Multiplexing; Pixel; Transform coding; CDMA; fingerprinting; interference; permutation;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2010 Sixth International Conference on
Conference_Location :
Darmstadt
Print_ISBN :
978-1-4244-8378-5
Electronic_ISBN :
978-0-7695-4222-5
DOI :
10.1109/IIHMSP.2010.126
