Results 11 to 20 of about 490,284 (147)

Research of LT Code Based on Key Information Feedback in Deep Space Communication

open access: yesIEEE Access, 2020
CCSDS LDPC code cannot effectively solve the problems of communication interruptions and high communication error rates in deep space communication. An application scheme of digital fountain code for deep space communication is thoroughly studied in this
Hai Tian   +3 more
doaj   +1 more source

LT Code Design for Inactivation Decoding [PDF]

open access: yes, 2014
We present a simple model of inactivation decoding for LT codes which can be used to estimate the decoding complexity as a function of the LT code degree distribution. The model is shown to be accurate in variety of settings of practical importance.
Bauch, Gerhard   +2 more
core   +2 more sources

Research on Distributed Matrix Computing Based on LT Code [PDF]

open access: yesJisuanji gongcheng
Distributed computing systems have emerged as necessary tools for processing large amounts of data in the context of the continuous expansion of big data and machine learning applications.
Yi LIU, Lei ZHANG
doaj   +1 more source

Inactivation Decoding of LT and Raptor Codes: Analysis and Code Design [PDF]

open access: yes, 2017
In this paper we analyze LT and Raptor codes under inactivation decoding. A first order analysis is introduced, which provides the expected number of inactivations for an LT code, as a function of the output distribution, the number of input symbols and ...
Bauch, Gerhard   +2 more
core   +2 more sources

Verification of SpacePy's radial diffusion radiation belt model [PDF]

open access: yesGeoscientific Model Development, 2012
Model verification, or the process of ensuring that the prescribed equations are properly solved, is a necessary step in code development. Careful, quantitative verification guides users when selecting grid resolution and time step and gives confidence ...
D. T. Welling, J. Koller, E. Camporeale
doaj   +1 more source

Quality of Medical Information Determine the Quality of Diagnosis Code [PDF]

open access: yes, 2019
The accuracy of the diagnosis code has implications for future patient care planning, provision of health services and patient care costs. Therefore, this study has analyzed the influence of the quality of medical information on the quality of the ...
Ismayani, A. (Ani)   +2 more
core   +3 more sources

FAMOUS, faster: using parallel computing techniques to accelerate the FAMOUS/HadCM3 climate model with a focus on the radiative transfer algorithm [PDF]

open access: yesGeoscientific Model Development, 2011
We have optimised the atmospheric radiation algorithm of the FAMOUS climate model on several hardware platforms. The optimisation involved translating the Fortran code to <i>C</i> and restructuring the algorithm around the computation of a ...
P. Hanappe   +8 more
doaj   +1 more source

Research on Stepwise UEP-LT Code for Ultraviolet Communication in Helicopter Emergency Landing Guiding [PDF]

open access: yesJisuanji gongcheng, 2016
Ultraviolet communication data determines the security of helicopter emergency landing.In order to provide greater protection for More Important Bits(MIB),a novel approach to provide Unequal Error Protection(UEP) based on the block duplication method and
ZHAO Taifei,LIU Xue,LIU Yijie
doaj   +1 more source

Block-Diagonal and LT Codes for Distributed Computing With Straggling Servers [PDF]

open access: yes, 2018
We propose two coded schemes for the distributed computing problem of multiplying a matrix by a set of vectors. The first scheme is based on partitioning the matrix into submatrices and applying maximum distance separable (MDS) codes to each submatrix ...
Amat, Alexandre Graell i   +2 more
core   +3 more sources

Effect of motions in prominences on the helium resonance lines in the extreme ultraviolet [PDF]

open access: yes, 2006
<b>Context</b>: Extreme ultraviolet resonance lines of neutral and ionised helium observed in prominences are difficult to interpret as the prominence plasma is optically thick at these wavelengths. If mass motions are taking place, as is the
Gouttebroze, P.   +2 more
core   +2 more sources

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