Results 71 to 80 of about 18,127 (206)
New decoding scheme for LDPC codes based on simple product code structure
, 2012 In this paper, a new decoding scheme for low-density parity-check (LDPC) codes using the concept of simple product code structure is proposed based on combining two independently received soft-decision data for the same codeword.
Hong, Seokbeom +4 more
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
Design of LDPC Codes: A Survey and New Results
Journal of Communications Software and Systems, 2006 This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining(near-)optimal degree distributions for LDPC code ensembles.
Gianluigi Liva +5 more
doaj
Construction of Quasi-Cyclic Low Density Parity Check Codes for Magnetic Induction Communication
IEEE Access, 2019 The magnetic induction (MI) communication has been proved to be an effective method in the wireless underground sensor networks (WUSN). MI communication system based on quasi-cyclic low density parity check (QC-LDPC) codes is expected to improve the ...
Hua Xu, Yanjing Sun, Wenjuan Shi
doaj +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
On the Girth of Tanner (3, 13) Quasi-Cyclic LDPC Codes
IEEE Access, 2019 Girth is an important structural property of low-density parity-check (LDPC) codes. Motivated by the works on the girth of Tanner (3, 5), (3, 7), (3, 11), and (5, 7) quasi-cyclic (QC) LDPC codes, we, in this paper, study the girth of Tanner (3, 13) QC ...
Hengzhou Xu +4 more
doaj +1 more source
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
A construction for girth‐8 QC‐LDPC codes using Golomb rulers
Electronics Letters, 2022 In this paper, an algebraic construction of regular QC‐LDPC codes by using the modular multiplication table mod P and Golomb rulers are proposed. It is proved that the proposed QC‐LDPC codes based on a Golomb ruler of length L have girth at least 8 if P ...
Inseon Kim, Hong‐Yeop Song
doaj +1 more source
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
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