Results 71 to 80 of about 6,933 (191)

Low-Density Parity-Check Codes as Stable Phases of Quantum Matter

PRX Quantum
Phases of matter with robust ground-state degeneracy, such as the quantum toric code, are known to be capable of robust quantum information storage. Here, we address the converse question: given a quantum error-correcting code, when does it define a ...
Chao Yin, Andrew Lucas
doaj   +1 more source

A Turbo-Detection Aided Serially Concatenated MPEG-4/TCM Videophone Transceiver [PDF]

, 2004
A Turbo-detection aided serially concatenated inner Trellis Coded Modulation (TCM) scheme is combined with four different outer codes, namely with a Reversible Variable Length Code (RVLC), a Non-Systematic Convolutional (NSC) code a Recursive Systematic ...
Ng, S. X., Chung, J. Y., Hanzo, L., Guo, F.   +3 more
core  

On the Design and Implementation and Evaluation of Euclidean Geometry Quasi-Cyclic LDPC Codes for NAND Flash Memories

IEEE Open Journal of the Communications Society
As data storage demands continue to grow, ensuring the reliability of NAND flash devices after a large number of Program/Erase (P/E) cycles have elapsed has become a critical requirement.
G. Achala, U. Shripathi Acharya, Pathipati Srihari, Linga Reddy Cenkeramaddi   +3 more
doaj   +1 more source

Protograph Based Low-Density Parity-Check Codes Design With Mixed Integer Linear Programming

IEEE Access, 2019
An approach to design protograph-based low-density parity-check (LDPC) codes utilizing mixed integer linear programming (MILP) optimization is presented in this paper.
Wojciech Sulek
doaj   +1 more source

Single and joint iterative decoding for higher order modulation schemes [PDF]

, 2008
The research project described in this thesis concentrates on the study, and application of specific channel coding techniques, in particular, low-density parity-check (LDPC) codes, iterative decoding on Tanner graphs, and their application on joint ...
Vital, Juan Carlos Serrato
core  

Derived dynamic scheduling for belief propagation decoding of LDPC codes

Electronics Letters
Among numerous dynamic scheduling strategies for low‐density parity‐check codes, many of them are of high complexity due to repetitive computation and ordering of belief residuals.
Xiaotian Xu, Hua Zhou, Jiayi Zhao
doaj   +1 more source

Encoding of QC-LDPC Codes of Rank Deficient Parity Matrix

Journal of Engineering, 2016
the encoding of long low density parity check (LDPC) codes presents a challenge compared to its decoding. The Quasi Cyclic (QC) LDPC codes offer the advantage for reducing the complexity for both encoding and decoding due to its QC structure.
Mohammed Kasim Mohammed Al-Haddad
doaj   +2 more sources

Ensemble noise-aided bit flipping decoding of low-density parity-check codes

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Moderate-length low-density parity-check codes are incorporated to increase the data transmission reliability and the energy gain in the next generation wireless communication systems.
Mykola Shtompel, Oleksandr Shefer
doaj   +1 more source

Blind Per-Survivor Processing-Based Multiuser Detection for Channel-Coded Multi-Carrier DS-CDMA Systems [PDF]

, 2004
In this paper, we present a blind Per-Survivor Processing (PSP)-hased Multiuser Detector (MUD) for synchronous Multicarrier (MC) Direct Sequence (DS) CDMA systems.
Yeap, B-L, Kuan, E-L, Wei, H, Hanzo, L, Guo, F.   +4 more
core  

Investigation of punctured LDPC codes and time-diversity on free-space optical links [PDF]

, 2011
In this paper, we analyze the behavior of DVB-S2 un-punctured/punctured low-density parity-check (LDPC) coded on-off-keying (OOK) under atmospheric turbulence conditions by utilizing time diversity. A performance characterization between these schemes is
Ghassemlooy, Zabih, Javornik, Tomaz, Kandus, Gorazd, Leitgeb, Erich, Czaputa, Martin   +4 more
core