Results 81 to 90 of about 11,056,883 (213)
A recently developed theory suggests that network coding is a generalization of source coding and channel coding and thus yields a significant performance improvement in terms of throughput and spatial diversity.
Bing Du, Jun Zhang
doaj +1 more source
Nonbinary LDPC-Coded Modulation System in High-Speed Mobile Communications
As a class of capacity-approaching codes, nonbinary low-density parity-check (LDPC) codes have attracted much attention because of noticeable performance.
Dan Feng +5 more
doaj +1 more source
Investigation of punctured LDPC codes and time-diversity on free-space optical links [PDF]
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 +4 more
core
High performance full diversity LDPC codes construction and performance analysis for H-ARQ channels
In order to improve the performance of communication system with hybrid automatic repeat request(H-ARQ),a kind of full diversity low density parity check(LDPC)codes on H-ARQ block-fading channels was proposed.First,the outage probability and inherent ...
Rui GUO, Fang-ning HU, Ji-lin LIU
doaj +2 more sources
Concatenated Turbo/LDPC codes for deep space communications: performance and implementation [PDF]
Deep space communications require error correction codes able to reach extremely low bit-error-rates, possibly with a steep waterfall region and without error floor. Several schemes have been proposed in the literature to achieve these goals.
Condo, Carlo
core
QC-LDPC Codes Construction by Concatenating of Circulant Matrices as Block-Columns
In this paper a new low complexity method for constructing binary quasi-cyclic low-density parity-check (QC-LDPC) codes is introduced. In the proposed method, each block-column of the parity check matrix H is made by a circulant matrix in a way that the ...
Mohammad Hesam Tadayon +1 more
doaj
Open-set blind recognition of non-binary LDPC codes
Blind encoder recognition methods have drawn much research interest in recent years, as they can play an important role in non-cooperative scenarios. This paper proposes an open-set blind recognition method for non-binary Low-Density Parity-Check (LDPC ...
Ming Jiang +3 more
doaj +1 more source
Proposta de códigos LDPC para canais de resposta parcial [PDF]
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Neste trabalho é apresentada uma proposta de códigos de verificação de paridade de baixa densidade (LDPC, Low Density ...
Legg, Andrei Piccinini
core

