Results 11 to 20 of about 15,682 (213)

Single and joint iterative decoding for higher order modulation schemes [PDF]

open access: yes, 2008
The research project described in this thesis concentrates on the study, and application of specific channel coding techniques, in particular, low-density parity-check (LDPC) codes, iterative decoding on Tanner graphs, and their application on joint ...
Vital, Juan Carlos Serrato
core   +7 more sources

Block Markov superposition transmission of LDPC codes

open access: yesJournal of Information and Intelligence, 2023
In this paper, based on the block Markov superposition transmission (BMST) technique, we present a new class of coupled low-density parity-check (LDPC) codes for the transport block (TB)-based transmission to improve the error-correcting performance. For
Qianfan Wang, Kongjing Guo, Xiao Ma
doaj   +1 more source

Design of LDPC Codes: A Survey and New Results [PDF]

open access: yes, 2006
This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining (near-)optimal degree distributions for LDPC code ensembles.
Ryan, William E.   +11 more
core   +1 more source

A Time Sharing Hybrid Probabilistic Shaping Scheme for Nonbinary LDPC Codes

open access: yesIEEE Access, 2020
A time sharing (TS) hybrid probabilistic shaping (HPS) scheme for nonbinary (NB) LDPC codes is proposed. For the conventional probabilistic shaping (CPS) scheme, the demodulator uses bit-metric decoding (BMD) for binary LDPC codes and NB LDPC codes ...
Zhanji Wu, Weimin Kang
doaj   +1 more source

Asymmetric quantum LDPC codes [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
5 pages, 1 figure, 1 table, to appear in the Proceedings of the 2008 IEEE International Symposium on Information ...
Pradeep Kiran Sarvepalli   +2 more
openaire   +4 more sources

VLSI implementation of a multi-mode turbo/LDPC decoder architecture [PDF]

open access: yes, 2013
Flexible and reconfigurable architectures have gained wide popularity in the communications field. In particular, reconfigurable architectures for the physical layer are an attractive solution not only to switch among different coding modes but also to ...
Maurizio Martina   +3 more
core   +1 more source

OpenCL/CUDA Algorithms for Parallel Decoding of any Irregular LDPC Code using GPU

open access: yesTelfor Journal, 2019
This article provides a scalable parallel approach of an iterative LDPC decoder. The proposed approach can be implemented in applications supporting massive parallel computing. The proposed mapping is suitable for decoding any irregular LDPC code without
J. Broulim   +3 more
doaj   +1 more source

Binary Wyner-Ziv and CEO Problem Coding Under the Hamming Distortion Criterion [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization
In this paper, we present a practical encoding and decoding scheme for the binary Wyner-Ziv problem based on graph-based codes. Our proposed scheme uses low-density generator-matrix (LDGM) codes in lossy source coding part and low-density parity-check ...
Mahdi Nangir
doaj   +1 more source

From Product Codes to Structured Generalized LDPC Codes [PDF]

open access: yes, 2010
Product codes, due to their relatively large minimum distance, are often seen as a natural solution for applications requiring low error floors.
Paolini, Enrico   +10 more
core   +1 more source

Randomly Punctured LDPC Codes [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2016
In this paper, we present a random puncturing analysis of low-density parity-check (LDPC) code ensembles. We derive a simple analytic expression for the iterative belief propagation (BP) decoding threshold of a randomly punctured LDPC code ensemble on the binary erasure channel (BEC) and show that, with respect to the BP threshold, the strength and ...
David G. M. Mitchell   +3 more
openaire   +4 more sources

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