Results 11 to 20 of about 29,520 (201)

Novel construction of quasi‐cyclic low‐density parity‐check codes with variable code rates for cloud data storage systems

open access: yesETRI Journal, 2022
This paper proposed a novel method for constructing quasi‐cyclic low‐density parity‐check (QC‐LDPC) codes of medium to high code rates that can be applied in cloud data storage systems, requiring better error correction capabilities.
V. Bhuvaneshwari, C. Tharini
semanticscholar   +2 more sources

A Note on the Girth of (3, 19)-Regular Tanner’s Quasi-Cyclic LDPC Codes

open access: yesIEEE Access, 2021
In this article, we study the cycle structure of (3, 19)-regular Tanner’s quasi-cyclic (QC) LDPC codes with code length $19p$ , where $p$ is a prime and $p\equiv 1~(\bmod ~57)$ , and transform the conditions for the existence of cycles of lengths not
Manjie Zhou   +4 more
semanticscholar   +3 more sources

The design of structured LDPC codes with algorithmic graph construction [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
Low-Density Parity-Check (LDPC) codes are among the most effective modern error-correcting codes due to their excellent correction performance and highly parallel decoding scheme.
Wojciech Sułek
doaj   +1 more source

Ephemeral Keys Authenticated with Merkle Trees and Their Use in IoT Applications

open access: yesSensors, 2021
Public key algorithms based on quasi-cyclic binary moderate-density parity-check codes (QC-MDPCs) and QC low-density parity-check codes (QC-LDPCs) codes for key encapsulation and encryption submitted to the NIST post-quantum competition (Bit Flipping Key
Pavol Zajac
doaj   +1 more source

On Reversibility and Self-Duality for Some Classes of Quasi-Cyclic Codes

open access: yesIEEE Access, 2020
In this work, we study two classes of quasi-cyclic (QC) codes and examine how several properties can be combined into the codes of these classes. We start with the class of QC codes generated by diagonal generator polynomial matrices; a QC code in this ...
Ramy Taki Eldin, Hajime Matsui
doaj   +1 more source

Full-Length Row-Multiplier QC-LDPC Codes With Girth Eight and Short Circulant Sizes

open access: yesIEEE Access, 2023
As a special case of a quasi-cyclic (QC) low-density parity-check (LDPC) code, a full-length row-multiplier (FLRM) QC-LDPC code is described by a compact exponent matrix based on two sequences of integers.
Juhua Wang   +3 more
doaj   +1 more source

New Binary Quantum Codes Derived From One-Generator Quasi-Cyclic Codes

open access: yesIEEE Access, 2019
In this paper, we consider a family of one-generator quasi-cyclic (QC) codes and their applications in quantum codes construction. We give a sufficient condition for one-generator QC codes to be self-orthogonal with respect to the symplectic inner ...
Jingjie Lv, Ruihu Li, Junli Wang
doaj   +1 more source

Jointly designed quasi-cyclic LDPC-coded cooperation with diversity combining at receiver

open access: yesInternational Journal of Distributed Sensor Networks, 2020
This correspondence proposes a jointly-designed quasi-cyclic (QC) low-density parity-check (LDPC)-coded multi-relay cooperation with a destination node realized by multiple receive antennas.
Muhammad Asif   +5 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  

Performance Analysis for Cooperative Communication System with QC-LDPC Codes Constructed with Integer Sequences

open access: yesDiscrete Dynamics in Nature and Society, 2015
This paper presents four different integer sequences to construct quasi-cyclic low-density parity-check (QC-LDPC) codes with mathematical theory. The paper introduces the procedure of the coding principle and coding.
Yan Zhang, Feng-fan Yang, Weijun Song
doaj   +1 more source

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