Results 81 to 90 of about 18,008 (158)
CONSTRUCTION OF REGULAR LDPC LIKE CODES BASED ON FULL RANK CODES AND THEIR ITERATIVE DECODING USING A PARITY CHECK TREE [PDF]
ICTACT Journal on Communication Technology, 2011 Low density parity check (LDPC) codes are capacity-approaching codes, which means that practical constructions exist that allow the noise threshold to be set very close to the theoretical Shannon limit for a memory less channel.
H. Prashantha Kumar +2 more
doaj
Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications [PDF]
Radioengineering, 2022 The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM.
C. L. Zhao +4 more
doaj
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
Electronics Letters, Volume 61, Issue 1, January/December 2025.Here, a multi‐user signal iterative detection and decoding scheme named LBEP based on block expectation propagation (BEP) is proposed for LDPC‐coded two‐phase unsourced random access (URA) scheme. In the iteratively process, the approximation of matrix inversion is used to facilitate expectation propagation (EP). The numerical results show that, in the
Jinyang Chen +5 more
wiley +1 more source
5G‐coded fluid antenna multiple access over block fading channels
Electronics Letters, Volume 61, Issue 1, January/December 2025.This letter investigates the use of 5G New Radio (NR) Modulation Coding Scheme (MCS) for FAMA systems to improve its connectivity over block fading channels. In particular, we propose an iterative decoding receiver with iterative interference covariance estimation, designed explicitly for slow fading channels.
Hanjiang Hong +4 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 +3 more
doaj +1 more source
, 2013 Quantum codes with low-weight stabilizers known as LDPC codes have been actively studied recently due to their simple syndrome readout circuits and potential applications in fault-tolerant quantum computing.
Freedman M., Hatcher A., Tillich J.-P.
core +1 more source
IEEE Transactions on Information TheoryThis work has been submitted to the IEEE for possible publication.
Jamison R. Ebert +2 more
openaire +2 more sources
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
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