Results 61 to 70 of about 13,970 (185)

The Analytical Description of Regular LDPC Codes Correcting Ability

open access: yesTransport and Telecommunication, 2014
The analytical description of regular LDPC (Low-Density Parity Check) codes correcting ability has been investigated. The statistical dependencies for the maximum number of corrected bits per the code word as a function of LDPC code word length and code ...
Uryvsky Leonid, Osypchuk Serhii
doaj   +1 more source

LDPC convolutional codes based on braided convolutional codes [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
We introduce and analyze new constructions of LDPC convolutional codes and their tail-biting versions which are obtained from braided convolutional codes. The basic ideas behind the encoding and decoding architectures for these codes are presented. Additionally, asymptotic results concerning the iterative thresholds are shown for different ensembles ...
Tavares, Marcos B.S.   +3 more
openaire   +3 more sources

Spatially Coupled LDPC Codes Constructed from Protographs

open access: yes, 2014
In this paper, we construct protograph-based spatially coupled low-density parity-check (SC-LDPC) codes by coupling together a series of L disjoint, or uncoupled, LDPC code Tanner graphs into a single coupled chain.
Costello Jr, Daniel J.   +2 more
core   +1 more source

Iterative decoding of SOVA and LDPC product code for bit-patterned media recoding

open access: yesAIP Advances, 2018
The demand for high-density storage systems has increased due to the exponential growth of data. Bit-patterned media recording (BPMR) is one of the promising technologies to achieve the density of 1Tbit/in2 and higher.
Seongkwon Jeong, Jaejin Lee
doaj   +1 more source

A construction of the high-rate regular quasi-cyclic LDPC codes

open access: yesEURASIP 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

Minimum Distance Distribution of Irregular Generalized LDPC Code Ensembles

open access: yes, 2013
In this paper, the minimum distance distribution of irregular generalized LDPC (GLDPC) code ensembles is investigated. Two classes of GLDPC code ensembles are analyzed; in one case, the Tanner graph is regular from the variable node perspective, and in ...
Flanagan, Mark F.   +2 more
core   +1 more source

On the performance of 1-level LDPC lattices

open access: yes, 2013
The low-density parity-check (LDPC) lattices perform very well in high dimensions under generalized min-sum iterative decoding algorithm. In this work we focus on 1-level LDPC lattices.
Sadeghi, Mohammad-Reza, Sakzad, Amin
core   +1 more source

Novel construction of QC-LDPC codes with modified 2-D GRS codes

open access: yesTongxin xuebao, 2015
The construction method for QC-LDPC (quasi-cyclic low density parity-check) code with modified two-dimensional generalized reed-solomon (2-D GRS) code is proposed using the generator polynomial of GRS code,so thus the constructed code can have better ...
Ming ZHAO, Xiao-lin ZHANG
doaj   +2 more sources

Rateless Coded Multi-User Uplink Transmission With Distributed Fronthaul Compression in Cloud RAN

open access: yesIEEE Access, 2020
In this paper, we design the rateless coded uplink transmission in cloud radio access network (C-RAN) with two users, two remote radio heads (RRHs), and one baseband processing unit (BBU) pool under block fading channel.
Yu Zhang, Zhehao Fan, Limin Meng
doaj   +1 more source

Efficient LDPC Code Design based on Genetic Algorithm for IoT Applications

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems
In this paper, we propose a low-density parity check (LDPC) code design scheme that improves the performance of the existing genetic algorithm-based LDPC scheme. In particular, we enhance the performance of the LDPC code by removing the girth-4 property
Thanh-Loc Nguyen-Van   +2 more
doaj   +1 more source

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