Results 71 to 80 of about 45,321 (190)

Spatially-Coupled QLDPC Codes [PDF]

Quantum
Spatially-coupled (SC) codes is a class of convolutional LDPC codes that has been well investigated in classical coding theory thanks to their high performance and compatibility with low-latency decoders.
Siyi Yang, Robert Calderbank
doaj   +1 more source

Avaliação das medidas do comprimento peniano de crianças e adolescentes Penile anthropometry in Brazilian child and adolescent

Jornal de Pediatria, 2007
OBJETIVO: Classicamente, o pênis tem duas funções: permitir a fertilização interna e direcionar o jato miccional. Entretanto, alterações objetivas do tamanho peniano podem levar ao diagnóstico de doenças.
Pedro N. Gabrich, Juliana S. P. Vasconcelos, Ronaldo Damião, Eloísio A. da Silva   +3 more
doaj   +1 more source

Doped low-density parity-check codes

Digital Communications and Networks
In this paper, we propose a doping approach to lower the error floor of Low-Density Parity-Check (LDPC) codes. The doping component is a short block code in which the information bits are selected from the coded bits of the dominant trapping sets of the ...
Yong Li, Rui Liu, Xianlong Jiao, Youqiang Hu, Zhen Luo, Francis C.M. Lau   +5 more
doaj   +1 more source

On Minimal Pseudo-Codewords of Tanner Graphs from Projective Planes [PDF]

, 2005
Pascal O. Vontobel, Roxana Smarandache
openalex   +1 more source

Low-density parity-check representation of fault-tolerant quantum circuits

Physical Review Research
In fault-tolerant quantum computing, quantum algorithms are implemented through quantum circuits capable of error correction. These circuits are typically constructed based on specific quantum error correction codes, with consideration given to the ...
Ying Li
doaj   +1 more source

Quasi-cyclic extension based on PEG algorithm for construction of LDPC codes

Tongxin xuebao, 2008
Several important relations between the cycle structure on the Tanner graph and the parity-check matrix H of LDPC codes were proved.A new algorithm for constructing LDPC codes was proposed that introduced quasi-cyclic ex-tension method to PEG algorithm ...
LEI Jing1, WANG Jian-hui1, TANG Chao-jing1   +2 more
doaj   +2 more sources

Conditionally Cycle-Free Generalized Tanner Graphs: Theory and Application to High-Rate Serially Concatenated Codes [PDF]

, 2006
Thomas R. Halford, K.M. Chugg
openalex   +1 more source

Regular and Irregular Multiple Serially- Concatenated Multiple-Parity-Check Codes for Wireless Applications

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, Giovanni Cancellieri, Franco Chiaraluce, Amedeo De Amicis De Amicis   +3 more
doaj  

On the Design of Punctured Low Density Parity Check Codes for Variable Rate Systems

Journal of Communications Software and Systems, 2005
The authors face the problem of designing good LDPC codes for applications requiring variable, that is adaptive, rates. More precisely, the object of the paper is twofold.
Marco Baldi, Franco Chiaraluce
doaj  

Ruling out small stopping sets and small girth in Tanner graph of QC-LDPC code [PDF]

, 2010
Lingjun Kong, Yang Xiao
openalex   +1 more source