This paper investigates the construction of random-structure LDPC (low-density parity-check) codes using Progressive Edge-Growth (PEG) algorithm and two proposed algorithms for removing short cycles (CB1 CB2 algorithm; CB stands Cycle Break). is an computer-based design codes, role which to generate a Tanner graph (a bipartite graph, represents parity-check matrix error-correcting channel code)...

A construction method based on the p-plane to design high-girth quasi-cyclic low-density parity-check (QC-LDPC) codes is proposed. Firstly the good points in every line of the p-plane can be ascertained through filtering the bad points, because the designed parity-check matrixes using these points have the short cycles in Tanner graph of codes. Then one of the best points from the residual good...

doi:10.4027/hfcc.2009 by Don Kramer, Heidi Herter, and Al Stoner Introduction The king, Tanner, and Dungeness crab fisheries are important parts of the Alaska seafood industry, and the snow crab fishery is increasing in importance. Crab is marketed fresh in several forms—live, whole cooked, cooked sections, and cooked picked meat (Fig. 1). Crabs deteriorate very rapidly after death, as a conseq...

This thesis is dedicated to the analysis and the design of sparse-graph codes for channel coding. The aim is to construct coding schemes having high performance both in the waterfall and in the error-floor regions under iterative decoding. In the first part, a new class of LDPC codes, named hybrid LDPC codes, is introduced. Their asymptotic analysis for memoryless symmetric channel is performed...

1. Introduction NMR diffusometry has evolved to become one of the most important methods in the study of diffusion and flow of liquids in complex material. Material that may be investigated spans a broad range: From rocks to soft biological material. In the latter case, one is often faced with a problem of trying to separate effects from inhomogeneities and restrictions. In the former case, we ...

We have implemented the log-conformation method for two-dimensional viscoelastic flow in COMSOL, a commercial high-level finite element package. The code is verified for an Oldroyd-B fluid flowing past a confined cylinder. We are also able to describe the well-known bistability of the viscoelastic flow in a crossslot geometry for a FENE-CR fluid, and we describe the changes required for perform...

Another outline of comparator which is primary piece of ADC is proposed. In this paper new plan of twofold tail comparator with cutting edge system of regenerative inverter is present. Proposed inverter gives less power scattering less postponement than traditional inverter. New proposed plan gives 25% decrease in power diminishment and 75% lessening in kickback clamor which is most essential p...

Four different ways of obtaining low-density parity-check codes from expander graphs are considered. For each case, lower bounds on the minimum stopping set size and the minimum pseudocodeword weight of expander (LDPC) codes are derived. These bounds are compared with the known eigenvalue-based lower bounds on the minimum distance of expander codes. Furthermore, Tanner’s parity-oriented eigenva...

Introduction: The treatment quality of diseases can affect the patient’s experience. Due to its different complications among cancer patients, the experience of chemotherapy is unique. The present study was conducted to explore the lived experience among cancer patients who had received chemotherapy. Methods: The study was conducted by a qualitative approach and a phenomenological method. In so...

Temporal-difference (TD) networks (Sutton and Tanner, 2004) are a predictive representation of state in which each node is an answer to a question about future observations or questions. Unfortunately, existing algorithms for learning TD networks are known to diverge, even in very simple problems. In this paper we present the first sound learning rule for TD networks. Our approach is to develop...