A new method for visualizing the behavior of an iterative decoder is presented. This method is applied to regular and irregular low-density parity-check codes. Several types of decoding errors are investigated and suggestions are made for improving the iterative decoder to avoid such errors. Furthermore, structural properties of parity-check matrices that influence the decoding performance are ...

One of the major challenges in Wireless Body Area Networks (WBANs) is to prolong the lifetime of network. Traditional research work focuses on minimizing transmit power; however, in the case of short range communication the consumption power in decoding is significantly larger than transmit power. This paper investigates the minimization of total power consumption by reducing the decoding power...

Since the discovery of parallel concatenated (turbo) codes, iterative decoding has become a vital field of research in digital communications. Applications of the “turbo principle” to many detection and decoding problems have been found. While most studies have focused on designing code concatenations with respect to maximum likelihood decoding performance, the convergence properties of iterati...

| It is well-known that MultiLevel Coding (MLC) andMultiStage Decoding (MSD) su ce to approach capacity if the rates at di erent levels are chosen appropriately. In most of the practical cases, however, the rate design rule for MSD doesn't leave any room for coding at higher levels of the MLC scheme, which is very important in fading environments. In this paper, the rate design rule for multile...

Abstract – In this paper a formal theory, construction methods, and a random ensemble approach for low-density parity-check convolutional codes (including turbo-codes) are presented. The principles of iterative decoding of low-density parity-check (LDPC) convolutional codes are given, and an iterative algorithm for decoding of homogeneous LDPC convolutional codes is described. Some simulation r...

We present iterative decoding process of Geometric Augmented Product codes that is a newly proposed linear block code construction technique. We also report the bit error performances for one of the constructed code of the technique utilising our iterative decoding approach.

One of the major challenges in Wireless Body Area Networks (WBANs) is to prolong the lifetime of network. Traditional research work focuses on minimizing transmit power; however, in the case of short range communication the consumption power in decoding is significantly larger than transmit power. This paper investigates the minimization of total power consumption by reducing the decoding power...

In storage system, the higher density perpendicular magnetic recording (PMR) channel requires more advanced signal setection method to satisfy the bit error rate performance. Recently the iterative decoding is in the limelight part of the coding theory for the storage system. Famous iterative codes are the LDPC code and the Turbo code. In this paper, we consider the serial concatenated convolut...

At high spectral efficiencies, optimal decoding of Space Time Block Coded (STBC) Multiple Input Multiple Output (MIMO) systems has a critical complexity unless the space-time code structure offers simple optimal decoding, as is the case for Space Time Orthogonal Block Codes (STOBC). Indeed, the complexity of true Maximum Likelihood (ML) decoding or A Posteriori Probability (APP) decoding of ST...

In this paper, we proposed a novel receiver algorithm for coherent underwater acoustic communications. The proposed receiver is composed of three parts: (1) Doppler tracking and correction, (2) Time reversal channel estimation and combining, and (3) Joint iterative equalization and decoding (JIED). To reduce computational complexity and optimize the equalization algorithm, Time reversal (TR) ch...