Results 61 to 70 of about 37,023 (238)
A construction of the high-rate regular quasi-cyclic LDPC codes
EURASIP Journal on Wireless Communications and Networking, 2019 In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes.
Qi Meng +3 more
doaj +1 more source
Ldpc Code Construction using Randomly Permutated Copies of Parity Check Matrix [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2018 A construction technique is proposed for low-density parity check (LDPC) codes. It uses a base parity check matrix designed from a ran-dom or constructed construction method as Gallager or Quasi-Cyclic LDPC (QC-LDPC) codes in sequence to get codes with ...
Amr lulu, Ammar Abu-Hudrouss
doaj +1 more source
The Effect of Saturation on Belief Propagation Decoding of LDPC Codes
, 2014 We consider the effect of LLR saturation on belief propagation decoding of low-density parity-check codes. Saturation occurs universally in practice and is known to have a significant effect on error floor performance.
Iyengar, Aravind +2 more
core +1 more source
Statistical mechanics of low-density parity-check codes [PDF]
Journal of Physics A: Mathematical and General, 2004 This paper reviews some recent theoretical results on the classical mechanics of error-correcting codes, with focus mainly on low-density parity-check codes (LDPC) in correcting codes, and on Gallager and McKay-Neal codes. After a general description of the considered communication channel, the authors review various LDPC code constructions and then ...
Y. Kabashima, D. Saad
openaire +2 more sources
JCPP Advances, EarlyView.Abstract Background Few studies have used nationwide registry data from both primary and secondary healthcare services to examine the incidence of attention‐deficit/hyperactivity disorder (ADHD) in children while accounting for early risk factors. We aimed to investigate trends in ADHD diagnoses and associated risk factors.
Marika Leppänen +8 more
wiley +1 more source
Reordered static layered schedule for 5G low‐density parity‐check codes
Electronics LettersThe error performance of the 5G low‐density parity‐check codes is significantly impacted by the update order of layers. At present, the row degree (RD) and the number of punctured bits (PBs) are widely used to decide the update order of layers. Here, the
Yangcan Zhou, Zhongfeng Wang
doaj +1 more source
Extended Non-Binary Low-Density Parity-Check Codes over Erasure Channels
, 2011 Based on the extended binary image of non-binary LDPC codes, we propose a method for generating extra redundant bits, such as to decreases the coding rate of a mother code.
Declercq, David +2 more
core +2 more sources
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT A high percentage of women who undergo the transition to postmenopause experience both menopausal symptoms and genitourinary syndrome of menopause (GSM). However, GSM is often underdiagnosed. This research aims to identify risk factors that may influence the number of GSM symptoms and whether they cause distress in Taiwanese women > 45 years ...
Shu‐Fang Su +2 more
wiley +1 more source
Stopping Set Distributions of Some Linear Codes [PDF]
, 2010 Stopping sets and stopping set distribution of an low-density parity-check code are used to determine the performance of this code under iterative decoding over a binary erasure channel (BEC).
Fu, Fang-Wei, Jiang, Yong, Xia, Shu-Tao
core
Potential distribution and susceptibility of Coffea arabica L. to climate change impacts
PLANTS, PEOPLE, PLANET, EarlyView.Ecological niche models (ENMs) are vital for understanding the impact of historical factors on ecosystems and predicting future climate change scenarios. These models help assess how environmental shifts affect agricultural species like coffee, which supports millions of people globally.
Yuliana Grisel García‐Martínez +1 more
wiley +1 more source