This paper addresses the problem of unauthorized redistribution of multimedia content by
malicious users (pirates). The solution proposed here is a new joint fingerprinting and …

This paper addresses the problem of unauthorized redistribution of multimedia content by
malicious users (pirates). In this method three color channels of the image are considered a …

In this paper we present a new quaternion-based encryption technique for color images. In
the proposed encryption method, images are written as quaternions and are rotated in a …

Walsh Codes are a set of orthonormal codes while PN Sequences are statistically random
but deterministically formed binary sequences. This paper discusses the basic concepts …

In this paper a new receiver-side fingerprinting method for color images is proposed. The
proposed method belongs to the group of Joint Fingerprinting and Decryption (JFD) …

This paper considers a Joint Fingerprinting and Decryption method, called Hillcast, for the
copyright protection and traitor tracing in case of Video on Demand services. Because the …

The proposed method is a new Joint Fingerprinting and Decryption (JFD) method that uses
a cipher based on quaternion rotation to encrypt color images that are then sent to all users …

The simulation environment used is Matlab and the results for all these detectors will be
illustrated in the last chapter as figures of BER (Bit Error Rate) depending on the SNR …

Code Division Multiple Access (CDMA) is the most popular wireless access technology in
modern mobile communication. Design of CDMA spreading codes has grown sufficient …

In this paper we present a comparative analysis of conventional & MMSE multiuser detectors
performances in CDMA systems. At base station end the main reason that affects …