Results 51 to 60 of about 21,382 (243)

Encoding of QC-LDPC Codes of Rank Deficient Parity Matrix

open access: yesJournal of Engineering, 2016
the encoding of long low density parity check (LDPC) codes presents a challenge compared to its decoding. The Quasi Cyclic (QC) LDPC codes offer the advantage for reducing the complexity for both encoding and decoding due to its QC structure.
Mohammed Kasim Mohammed Al-Haddad
doaj   +2 more sources

An Efficient Construction Method for Quasi-Cyclic Low Density Parity Check Codes

open access: yesIEEE Access, 2017
In this paper, we propose an optimized belief propagation (OBP) based progressive edge-growth (PEG) method for constructing quasi-cyclic low density parity check (QC-LDPC) codes. In this proposed method, Tanner graphs are built by progressively appending
Yiming Lei, Mingke Dong
doaj   +1 more source

Quasi-Cyclic LDPC Codes based on Pre-Lifted Protographs

open access: yes, 2014
Quasi-cyclic low-density parity-check (QC-LDPC) codes based on protographs are of great interest to code designers because analysis and implementation are facilitated by the protograph structure and the use of circulant permutation matrices for ...
Costello Jr, Daniel J.   +2 more
core   +1 more source

Energy-Efficient Raptor-like LDPC Coding Scheme Design and Implementation for IoT Communication Systems

open access: yesEnergies, 2023
The large number of inexpensive and energy-efficient terminals in IoT systems is one of the emerging elements of the recent landscape of information and communication technologies.
Jakub Hyla, Wojciech Sułek
doaj   +1 more source

Quasi-Cyclic LDPC Codes: Influence of Proto- and Tanner-Graph Structure on Minimum Hamming Distance Upper Bounds

open access: yes, 2011
Quasi-cyclic (QC) low-density parity-check (LDPC) codes are an important instance of proto-graph-based LDPC codes. In this paper we present upper bounds on the minimum Hamming distance of QC LDPC codes and study how these upper bounds depend on graph ...
Smarandache, Roxana, Vontobel, Pascal O.
core   +1 more source

Analisis Kinerja Jaringan 5G dengan Pengkodean QC-LDPC dan Polar

open access: yesJurnal Elkomika
ABSTRAK Jaringan 5G telah menjadi penanda penting dalam evolusi teknologi nirkabel yang menawarkan kecepatan dan kinerja yang luar biasa untuk memenuhi kebutuhan konektivitas yang semakin meningkat.
RENI DYAH WAHYUNINGRUM   +3 more
doaj   +1 more source

Efficient and Scalable FPGA-Oriented Design of QC-LDPC Bit-Flipping Decoders for Post-Quantum Cryptography

open access: yesIEEE Access, 2020
Considering code-based cryptography, quasi-cyclic low-density parity-check (QC-LDPC) codes are foreseen as one of the few solutions to design post-quantum cryptosystems.
Davide Zoni   +2 more
doaj   +1 more source

An Effective Multi-Mode Iris Authentication System on a Microprocessor-FPGA Heterogeneous Platform With QC-LDPC Codes

open access: yesIEEE Access, 2021
With the emergence and popularity of iris biometrics, there are increasing concerns regarding the feasibility of iris authentication systems and their corresponding variability reduction methods.
Longyu Ma   +3 more
semanticscholar   +1 more source

Classical channel bandwidth requirements in continuous variable quantum key distribution systems

open access: yesIET Quantum Communication, Volume 5, Issue 4, Page 601-611, December 2024.
The reconciliation method for continuous variable quantum key distribution (CV‐QKD) systems is usually chosen based on its reconciliation efficiency. Nonetheless, one must also consider the requirements of each reconciliation method in terms of the amount of information transmitted on the classical channel. Such may limit the achievable key rates.
Margarida Almeida   +3 more
wiley   +1 more source

A construction of the high-rate regular quasi-cyclic LDPC codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes.
Qi Meng   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy