We study the colour connection structure of R-parity violating decays and production cross sections, and construct a Monte Carlo simulation of these processes including colour coherence effects. We then present some results from the implementation of these processes in the HERWIG Monte Carlo event generator. We include the matrix elements for the two-body sfermion and three-body gaugino and glu...

The prototype quantum random number (random bit) generator (QRNG) consists of one photon at a time falling on 50:50 beam splitter followed by detection in or the other output beams due to irreducible probabilistic nature mechanics. Due difficulties producing single photons demand, practice, pulses weak coherent (laser) light are used. In this paper, we take different approach, that uses moderat...

—Real-valued block codes are introduced, which are derived from Discrete Fourier Transforms (DFT) and Discrete Hartley Transforms (DHT). These algebraic structures are built from the eigensequences of the transforms. Generator and parity check matrices were computed for codes up to block length N=24. They can be viewed as lattices codes so the main parameters (dimension, minimal norm, area of t...

Abstract: Z2Z4-additive codes, as a special class of abelian codes, have found a very welcoming place in the recent studies of algebraic coding theory. This family in one hand is similar to binary codes on the other hand is similar to quaternary codes. The structure of Z2Z4additive codes and their duals has been determined lately. In this study we investigate the algebraic structure of Z2Z2s -a...

In this work, we study a class of generalized quasi-cyclic (GQC) codes called skew GQC codes. By the factorization theory of ideals, we give the Chinese Remainder Theorem over the skew polynomial ring, which leads to a canonical decomposition of skew GQC codes. We also focus on some characteristics of skew GQC codes in details. For a 1-generator skew GQC code, we define the parity-check polynom...

High-speed signal computation and communication are an essential part of modern that increases optical necessity. Therefore, researchers developed different types digital devices in the all-optical domain. Due to versatile gain medium reflective semiconductor amplifiers (RSOAs), it has various important applications passive networks. In comparison with amplifier (SOA), RSOAs exhibit better perf...

In this paper, a practical coding scheme is designed for the binary Wyner-Ziv (WZ) problem by using nested low-density generator-matrix (LDGM) and low-density paritycheck (LDPC) codes. This scheme contains two steps in the encoding procedure. The first step involves applying the binary quantization by employing LDGM codes and the second one is using the syndrome-coding technique by utilizing LD...

In this paper, we propose to generalize the coding schemes first proposed by Kozic et al. to high spectral efficient modulation schemes. We study at first Chaos Coded Modulation based on the use of small dimensional modulo-MAP encoding process and we give a solution to study the distance spectrum of such coding schemes to accurately predict their performances. However, the obtained performances...

Hardware simulation of channel codes offers the potential of improving code evaluation speed by orders of magnitude over workstationor PC-based simulation. We describe a hardware-based Gaussian noise generator used as a key component in a hardware simulation system, for exploring channel code behavior at very low bit error rates (BERs) in the range of 10−9 to 10−10. The main novelty is the desi...