Results 81 to 90 of about 26,841 (236)

Generalized Stability Condition for Generalized and Doubly-Generalized LDPC Codes

, 2007
In this paper, the stability condition for low-density parity-check (LDPC) codes on the binary erasure channel (BEC) is extended to generalized LDPC (GLDPC) codes and doublygeneralized LDPC (D-GLDPC) codes. It is proved that, in both cases, the stability
Chiani, M., Fossorier, M., Paolini, E.
core   +1 more source

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

Finite Length Analysis of Low-Density Parity-Check Codes on Impulsive Noise Channels

IEEE Access, 2016
Low-density parity-check (LDPC) codes with very long block lengths are well known for their powerful error correction, but it is not always desirable to employ long codes in communication systems, where latency is a serious issue, such as voice and video
Zhen Mei, Martin Johnston, Stephane Le Goff, Li Chen   +3 more
doaj   +1 more source

Characterization and Efficient Search of Non-Elementary Trapping Sets of LDPC Codes with Applications to Stopping Sets

, 2018
In this paper, we propose a characterization for non-elementary trapping sets (NETSs) of low-density parity-check (LDPC) codes. The characterization is based on viewing a NETS as a hierarchy of embedded graphs starting from an ETS.
Banihashemi, Amir H., Hashemi, Yoones
core   +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

Design of rate-compatible LDPC codes based on uniform shortening distribution

Engineering and Applied Science Research, 2018
Information shortening is a methodology to construct rate-compatible codes. Recently, LDPC codes have been shown that uniform shortening distribution is a criterion to achieve excellent performance.
Arisa Wongsriwor, Virasit Imtawil, Puripong Suttisopapan   +2 more
doaj   +1 more source

Design and Reception Method of Code Shift Keying Signals With Power‐of‐Two Phase Intervals

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
A novel approach for the design and reception of CSK signals with a phase interval mapping of power‐of‐two chips is proposed. This method is capable of significantly reducing the demodulation complexity while mitigating the intersymbol interference. ABSTRACT Precise point positioning (PPP) technology has garnered extensive attention for its ability to ...
Nengjie Yu, Dun Wang, Xiaohui Ba, Mingquan Lu, Shaobo Shen   +4 more
wiley   +1 more source

Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability

ICT Express
In 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

Concatenated LDPC-Polar Codes Decoding Through Belief Propagation

, 2017
Owing to their capacity-achieving performance and low encoding and decoding complexity, polar codes have drawn much research interests recently. Successive cancellation decoding (SCD) and belief propagation decoding (BPD) are two common approaches for ...
Abbas, Syed Mohsin, Chen, Ji, Fan, YouZhe, Tsui, Chi-Ying   +3 more
core   +2 more sources

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