Results 31 to 40 of about 39,115 (248)

Effective identification of dominant fully absorbing sets for Raptor-like LDPC codes

ETRI Journal, 2023
The error-rate floor of low-density parity-check (LDPC) codes is attributed to the trapping sets of their Tanner graphs. Among them, fully absorbing sets dominantly affect the error-rate performance, especially for short blocklengths.
Woncheol Cho, Chanho Yoon, Kapseok Chang, Young-Jo Ko   +3 more
doaj   +1 more source

4-CYCLE FREE APM LDPC CODES WITH AN EXPLICIT CONSTRUCTION [PDF]

Journal of Algebraic Systems, 2021
Recently, a class of low-density parity-check codes based on affine permutation matrices, called APM-LDPC codes, have been considered which have some advantages than quasi-cyclic (QC) LDPC codes in terms of minimum-distance, cycle distribution, and error-
Z. Gholami, M. Gholami
doaj   +1 more source

Distance verification for LDPC codes [PDF]

2016 IEEE International Symposium on Information Theory (ISIT), 2016
5 pages, 1 figure, to appear in Proceedings of ISIT 2016 - IEEE International Symposium on Information Theory ...
Ilya Dumer, Alexey A. Kovalev, Leonid P. Pryadko   +2 more
openaire   +4 more sources

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

EURASIP 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

A Nonbinary LDPC-Coded Probabilistic Shaping Scheme for a Rayleigh Fading Channel

Entropy, 2022
In this paper, a novel, nonbinary (NB) LDPC-coded probabilistic shaping (PS) scheme for a Rayleigh fading channel is proposed. For the NB LDPC-coded PS scheme in Rayleigh fading channel, the rotation angle of 16 quadrature amplitude modulation (QAM ...
Weimin Kang
doaj   +1 more source

High-Speed Reconciliation for CVQKD Based on Spatially Coupled LDPC Codes

IEEE Photonics Journal, 2018
The speed of continuous variable quantum key distribution is limited by the reconciliation efficiency and the reconciliation frame error rate (FER) in the reconciliation phase.
Xue-Qin Jiang, Siyuan Yang, Peng Huang, Guihua Zeng   +3 more
doaj   +1 more source

Design of Low-Density Parity-Check Code Pair for Joint Source-Channel Coding Systems Based on Graph Theory

Entropy, 2023
In this article, a graph-theoretic method (taking advantage of constraints among sets associated with the corresponding parity-check matrices) is applied for the construction of a double low-density parity-check (D-LDPC) code (also known as LDPC code ...
Yijie Lv, Jiguang He, Weikai Xu, Lin Wang   +3 more
doaj   +1 more source

Optimizing quasi-cyclic spatially coupled LDPC codes by eliminating harmful objects

EURASIP Journal on Wireless Communications and Networking, 2023
It is well known that some harmful objects in the Tanner graph of low-density parity-check (LDPC) codes have a negative impact on their error correction performance under iterative message-passing decoding.
Massimo Battaglioni, Franco Chiaraluce, Marco Baldi, Michele Pacenti, David G. M. Mitchell   +4 more
doaj   +1 more source

Hierarchical and High-Girth QC LDPC Codes

, 2011
We present a general approach to designing capacity-approaching high-girth low-density parity-check (LDPC) codes that are friendly to hardware implementation.
Draper, Stark C., Wang, Yige, Yedidia, Jonathan S.   +2 more
core   +2 more sources

Investigating the Performance of Coded GSIM DCSK Communication Systems over Multipath Rayleigh Fading Channel

Journal of Communications Software and Systems
Index modulation−based differential chaos shift keying (IM−DCSK) is a promising technique in wireless communication systems. Among all schemes, a Grouping Subcarrier Index Modulation DCSK (GSIM−DCSK) supports suit−coded modulation to improve bit error ...
Ali Jaber Al-Askery, Fadhil Sahib Hasan, Ahmed A. Thabit   +2 more
doaj   +1 more source