Results 71 to 80 of about 26,841 (236)

LDPC convolutional codes based on braided convolutional codes [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
We introduce and analyze new constructions of LDPC convolutional codes and their tail-biting versions which are obtained from braided convolutional codes. The basic ideas behind the encoding and decoding architectures for these codes are presented. Additionally, asymptotic results concerning the iterative thresholds are shown for different ensembles ...
Tavares, Marcos B.S.   +3 more
openaire   +3 more sources

A Non‐Binary Dual Cascade Polar Codes Construction and Low‐Complexity SCL Decoding

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
First, we design an error‐correction approach including two cascade non‐binary polar coding (NB‐CPolar) structures and a cyclic redundancy check (CRC) code. Second, we propose a low‐complexity decoding algorithm based on non‐binary successive cancellation list (NB‐LSCL) decoding.
Baoxin Su   +3 more
wiley   +1 more source

Design of LDPC Codes: A Survey and New Results

open access: yesJournal of Communications Software and Systems, 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.
Gianluigi Liva   +5 more
doaj  

A construction for girth‐8 QC‐LDPC codes using Golomb rulers

open access: yesElectronics Letters, 2022
In this paper, an algebraic construction of regular QC‐LDPC codes by using the modular multiplication table mod P and Golomb rulers are proposed. It is proved that the proposed QC‐LDPC codes based on a Golomb ruler of length L have girth at least 8 if P ...
Inseon Kim, Hong‐Yeop Song
doaj   +1 more source

Fault-Tolerance of "Bad" Quantum Low-Density Parity Check Codes

open access: yes, 2012
We discuss error-correction properties for families of quantum low-density parity check (LDPC) codes with relative distance that tends to zero in the limit of large blocklength.
Kovalev, Alexey A., Pryadko, Leonid P.
core   +1 more source

On the Invisible Backdoor Attacks on Peer‐to‐Peer Semantic Vehicular Networks

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
ABSTRACT Peer‐to‐peer semantic vehicular networks (P2P‐SVNs) use semantic communication to enable efficient vehicle‐to‐vehicle interaction by exchanging meaning instead of raw data. However, P2P‐SVNs face unique backdoor threats where attackers embed triggers in semantic features. Current research predominantly focuses on explicit trigger patterns that
Yuanhang He   +3 more
wiley   +1 more source

CONSTRUCTION OF REGULAR LDPC LIKE CODES BASED ON FULL RANK CODES AND THEIR ITERATIVE DECODING USING A PARITY CHECK TREE [PDF]

open access: yesICTACT Journal on Communication Technology, 2011
Low density parity check (LDPC) codes are capacity-approaching codes, which means that practical constructions exist that allow the noise threshold to be set very close to the theoretical Shannon limit for a memory less channel.
H. Prashantha Kumar   +2 more
doaj  

On the Girth of Tanner (3, 13) Quasi-Cyclic LDPC Codes

open access: yesIEEE Access, 2019
Girth is an important structural property of low-density parity-check (LDPC) codes. Motivated by the works on the girth of Tanner (3, 5), (3, 7), (3, 11), and (5, 7) quasi-cyclic (QC) LDPC codes, we, in this paper, study the girth of Tanner (3, 13) QC ...
Hengzhou Xu   +4 more
doaj   +1 more source

Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications [PDF]

open access: yesRadioengineering, 2022
The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM.
C. L. Zhao   +4 more
doaj  

Deep Learning Based Design of Binary Signalling for Optical Wireless Communication Systems With 2D Receiver

open access: yesIET Optoelectronics, Volume 19, Issue 1, January/December 2025.
We apply a deep learning (DL) technique to binary signalling design for optical wireless communication (OWC) system with a 2D LED transmitter array and an arrayed 2D receiver. It is demonstrated that the DL‐based signalling design algorithm is feasible for OWC system, considering physical channel effect. ABSTRACT Recently, deep learning (DL) techniques
Yongwoon Hwang   +2 more
wiley   +1 more source

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