Results 71 to 80 of about 9,106 (209)

Performance of Cascade and LDPC Codes for Information Reconciliation on Industrial Quantum Key Distribution Systems

IET Quantum Communication, Volume 6, Issue 1, January/December 2025.
This paper evaluates Cascade and LDPC codes for information reconciliation in industrial quantum key distribution systems. We highlight efficient methods for minimising key mismatches and optimising performance by analysing often overlooked aspects and proposing new metrics.
Ronny Mueller, Claudia De Lazzari, Fernando Chirici, Ilaria Vagniluca, Leif Katsuo Oxenløwe, Søren Forchhammer, Alessandro Zavatta, Davide Bacco   +7 more
wiley   +1 more source

Doped low-density parity-check codes

Digital 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, Rui Liu, Xianlong Jiao, Youqiang Hu, Zhen Luo, Francis C.M. Lau   +5 more
doaj   +1 more source

Implementation for Two-Stage Hybrid Decoding for Low Density Parity Check (LDPC) Codes

International Journal of Computer Applications, 2013
ABSTRACT LDPC codes are gaining high attention in Channel Coding field these days. However, one of the main problems facing usage of these codes in communication systems is the high complexity decoding scheme that results in high decoding delay. Such delay is not acceptable in some applications that depend on time such as video transmission. This paper
G. Gomah, A. Zekry, Hend A.Orabi
openaire   +1 more source

Quantum Secure Image Transmission: A Chaos‐Assisted Quantum Key Distribution Approach Using Entanglement

IET Quantum Communication, Volume 6, Issue 1, January/December 2025.
A novel secure image transmission scheme has been proposed using the logistic chaos map and the Ekert protocol. The quantum key distribution can be used to generate seed parameters for classical chaos, thus ensuring a strong encryption method. ABSTRACT The emergence of quantum computing has introduced unprecedented security challenges to conventional ...
Raiyan Rahman, Md Shawmoon Azad, Mohammed Rakibul Hasan, Syed Emad Uddin Shubha, M. R. C. Mahdy   +4 more
wiley   +1 more source

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

IEEE 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

Delay-Exponent of Bilayer Anytime Code

, 2014
In this paper, we study the design and the delay-exponent of anytime codes over a three terminal relay network. We propose a bilayer anytime code based on anytime spatially coupled low-density parity-check (LDPC) codes and investigate the anytime ...
Lechner, Gottfried, Nguyen, Khoa D., Noor-A-Rahim, Md.   +2 more
core   +1 more source

Methods of Sparse Measurement Matrix Optimization for Compressed Sensing

IET Signal Processing, Volume 2025, Issue 1, 2025.
In compressed sensing (CS), a sparse measurement matrix with few nonzero entries is more competitive than a dense matrix in reducing the number of multiplication units. Recent studies indicate that an optimized measurement matrix having low coherence with a specified dictionary can significantly improve the reconstruction performance.
Renjie Yi, Shunan Han, Peng Liu, Bo Zhang, Hang Liu, Chao Zhai   +5 more
wiley   +1 more source

Perbandingan Kinerja LDPC (Low Densiti Parity Check) Dengan Metode Decoding Bit Flip Pada Kanal AWGN dengan Multipath Fading [PDF]

, 2011
As an effect of the globalization era, telecomunication technology, especially in wireless comunication system is forced to prepare high data rate with reliable Quality of Services (QOS) with Low Bit Error Rate (BER) and very small power.
Moegiharto, Yoedy, PRASETYO, BENY NUR
core  

Shortened Array Codes of Large Girth

, 2006
One approach to designing structured low-density parity-check (LDPC) codes with large girth is to shorten codes with small girth in such a manner that the deleted columns of the parity-check matrix contain all the variables involved in short cycles. This
Kashyap, Navin, Leyba, David, Milenkovic, Olgica   +2 more
core   +2 more sources

Blind Recognition Algorithm of Convolutional Code via Convolutional Neural Network

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
Pointing at the vexed question of blind recognition in the convolutional code class, this paper proposes a convolutional code blind identification method via convolutional neural networks (CNNs). First, this algorithm uses the traditional method to generate different convolutional codes, and the feature extraction algorithm adopts the theorem of Euclid’
Pan Deng, Tianqi Zhang, Lianghua Wen, Baoze Ma, Ying Wei, Linhao Cui, Weiwei Jiang   +6 more
wiley   +1 more source