Results 71 to 80 of about 10,016 (203)
Adaptive Coding‐Based Quantum Communication System for Image Transmission
Electronics Letters, Volume 61, Issue 1, January/December 2025.Adaptive coding‐based quantum communication demonstrates the superior robustness and higher image quality compared to the adaptive coding‐based classical communication in varying channel noise conditions and bandwidth‐restricted applications. ABSTRACT This work presents a quantum communication system enhanced with adaptive coding, aimed at improving ...
Udara Jayasinghe +4 more
wiley +1 more source
A Non‐Binary Dual Cascade Polar Codes Construction and Low‐Complexity SCL Decoding
Electronics 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
Construction Method of QC-LDPC Codes with Big Girth for Fast Encoding [PDF]
Jisuanji gongcheng, 2018 The sub-matrices on both diagonals of the right half of the check matrix are unit matrices.Existence of the deterministic unit matrix not only destroys the randomness of Quasie Cyclic-Low Density Parity Check(QC-LDPC) code,it leads to a certain loss of ...
PENG Haiying,YANG Jian,SUN Lijun
doaj
IET 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
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 +7 more
wiley +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
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 +4 more
wiley +1 more source
Low Density Parity Check Codes Constructed from Hankel Matrices
Journal of Telecommunications and Information Technology, 2018 In this paper, a new technique for constructing low density parity check codes based on the Hankel matrix and circulant permutation matrices is proposed. The new codes are exempt of any cycle of length 4.
Mohammed Amine Tehami
doaj +1 more source
Generalized Low-Density Parity-Check Coding Aided Multilevel Codes
, 2006 Classic Low-Density Parity-Check (LDPC) codes have recently been used as component codes in Multilevel Coding (MLC) due to their impressive BER performance as well as owing to their flexible coding rates.
Hanzo, L., Kuo, F.C., Tee, R.Y.S.
core
Construction of Near-Capacity Protograph LDPC Code Sequences with Block-Error Thresholds
, 2015 Density evolution for protograph Low-Density Parity-Check (LDPC) codes is considered, and it is shown that the message-error rate falls double-exponentially with iterations whenever the degree-2 subgraph of the protograph is cycle-free and noise level is
Pradhan, Asit Kumar +2 more
core +1 more source