Results 31 to 40 of about 13,741 (205)

A High Throughput Implementation of QC-LDPC Codes for 5G NR

open access: yesIEEE Access, 2019
Quasi-cyclic low-density parity-check (QC-LDPC) codes are the choice for data channels in the fifth generation (5G) new radio (NR). At the transmitter side, code bits from the QC-LDPC encoder are delivered to the rate matcher.
Hao Wu, Huayong Wang
doaj   +1 more source

Finite-Length Analysis for Spatially Coupled LDPC Codes Based on Base Matrix

open access: yesEntropy, 2023
Spatially coupled low density parity check (SC-LDPC) are prominent candidates for future communication standards due to their “threshold saturation” properties.
Yang Liu, Sha Sun, Yuzhi Zhang, Bin Wang
doaj   +1 more source

Doped low-density parity-check codes

open access: yesDigital Communications and Networks
In this paper, we propose a doping approach to lower the error floor of Low-Density Parity-Check (LDPC) codes. The doping component is a short block code in which the information bits are selected from the coded bits of the dominant trapping sets of the ...
Yong Li   +5 more
doaj   +1 more source

Beyond 100 Gbit/s Pipeline Decoders for Spatially Coupled LDPC Codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
Low-density parity-check (LDPC) codes are a well-established class of forward error correction codes that provide excellent error correction performance for large code block sizes.
Matthias Herrmann, Norbert Wehn
doaj   +1 more source

Concatenated LDPC-Polar Codes Decoding Through Belief Propagation

open access: yes, 2017
Owing to their capacity-achieving performance and low encoding and decoding complexity, polar codes have drawn much research interests recently. Successive cancellation decoding (SCD) and belief propagation decoding (BPD) are two common approaches for ...
Abbas, Syed Mohsin   +3 more
core   +2 more sources

New Codes on Graphs Constructed by Connecting Spatially Coupled Chains

open access: yes, 2012
A novel code construction based on spatially coupled low-density parity-check (SC-LDPC) codes is presented. The proposed code ensembles are described by protographs, comprised of several protograph-based chains characterizing individual SC-LDPC codes. We
Costello Jr, Daniel J.   +3 more
core   +1 more source

Design and Performance of Rate-compatible Non-Binary LDPC Convolutional Codes

open access: yes, 2011
In this paper, we present a construction method of non-binary low-density parity-check (LDPC) convolutional codes. Our construction method is an extension of Felstroem and Zigangirov construction for non-binary LDPC convolutional codes.
Kasai, Kenta   +2 more
core   +1 more source

INCREASING THE WIRELESS SYSTEMS INFORMATION EFFICIENCY USING LDPC CODING

open access: yesInformation and Telecommunication Sciences, 2019
Background. LDPC codes research is performed in the paper. The influence of LDPC codes on channel information efficiency is studied in scope of MCS and the benefit of using LDPC codes is specified in digits as a result of research. Objective. The purpose
Leonid Uryvsky   +2 more
doaj   +1 more source

Research of LT Code Based on Key Information Feedback in Deep Space Communication

open access: yesIEEE Access, 2020
CCSDS LDPC code cannot effectively solve the problems of communication interruptions and high communication error rates in deep space communication. An application scheme of digital fountain code for deep space communication is thoroughly studied in this
Hai Tian   +3 more
doaj   +1 more source

Protograph-Based LDPC Code Design for Shaped Bit-Metric Decoding [PDF]

open access: yes, 2015
A protograph-based low-density parity-check (LDPC) code design technique for bandwidth-efficient coded modulation is presented. The approach jointly optimizes the LDPC code node degrees and the mapping of the coded bits to the bit-interleaved coded ...
Böcherer, Georg   +2 more
core   +3 more sources

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