Results 51 to 60 of about 853 (182)
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
Semi-random and semi-algebraic structural design for IRA-LDPC codes
Tongxin xuebao, 2014 A method of semi-random and semi-algebraic structure was presented for constructing the low-density parity-check matrix that corresponds to the information bits of the IRA codes.Compared with the existing structural LDPC codes,the distinct advantage of ...
Li PENG, Qi ZHANG, Bo WANG, Tao CHEN
doaj +2 more sources
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
Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability
ICT ExpressIn this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel.
Woong-Shin Kwak, Jae-Won Kim
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 +3 more
doaj +1 more source
Journal of Communications Software and Systems, 2009 Multiple Serially-Concatenated Multiple-Parity-Check (M-SC-MPC) codes are a class of structured Low-Density Parity-Check (LDPC) codes, characterized by very simple encoding, that we have recently introduced.
Marco Baldi +3 more
doaj
EURASIP Journal on Wireless Communications and Networking, 2010 A recently developed theory suggests that network coding is a generalization of source coding and channel coding and thus yields a significant performance improvement in terms of throughput and spatial diversity.
Bing Du, Jun Zhang
doaj +1 more source
Nonbinary LDPC-Coded Modulation System in High-Speed Mobile Communications
IEEE Access, 2018 As a class of capacity-approaching codes, nonbinary low-density parity-check (LDPC) codes have attracted much attention because of noticeable performance.
Dan Feng +5 more
doaj +1 more source