Results 11 to 20 of about 13,207 (236)

Optimized Generalized LDPC Convolutional Codes. [PDF]

open access: yesEntropy (Basel)
In this paper, some optimized encoding and decoding schemes are proposed for the generalized LDPC convolutional codes (GLDPC–CCs). In terms of the encoding scheme, a flexible doping method is proposed, which replaces multiple single parity check (SPC ...
Deng L   +7 more
europepmc   +2 more sources

Navigating through Noise Comparative Analysis of Using Convolutional Codes vs. Other Coding Methods in GPS Systems

open access: yesApplied Sciences, 2023
This research highlights the importance of error-correcting codes in ensuring secure and efficient data transmission over noisy channels. This paper aims to address the issue of limited information regarding the factors that contribute to the ...
Nawras H. Sabbry, Alla Levina
doaj   +1 more source

Coded-GFDM for Reliable Communication in Underwater Acoustic Channels

open access: yesSensors, 2022
The performance of the coded generalized frequency division multiplexing (GFDM) transceiver has been evaluated in a shallow underwater acoustic channel (UAC). Acoustic transmission is the scheme of choice for communication in UAC since radio waves suffer
Mohsin Murad   +2 more
doaj   +1 more source

Systematic Encoding and Shortening of PAC Codes

open access: yesEntropy, 2020
Polarization adjusted convolutional (PAC) codes are a class of codes that combine channel polarization with convolutional coding. PAC codes are of interest for their high performance.
Erdal Arıkan
doaj   +1 more source

NOISE IMMUNITY CODES DISPLAY IN RELIABILITY CORDINATES

open access: yesInformation and Telecommunication Sciences, 2015
Background. Noise immunity codes are widely used in the modern telecommunication systems. The methodology of properties count of convolutional codes, offered by authors before, to the equivalent parameters of block codes gave the opportunity to use the ...
Leonid Uryvskyi, Anton Pieshkin
doaj   +1 more source

Performance Improvement of Space Missions Using Convolutional Codes by CRC-Aided List Viterbi Algorithms

open access: yesIEEE Access, 2023
Recently, CRC-aided list decoding of convolutional codes has gained attention thanks to its remarkable performance in the short blocklength regime. This paper studies the convolutional and CRC codes of the Consultative Committee for Space Data System ...
Riccardo Schiavone   +2 more
doaj   +1 more source

An Embedding Strategy Using Q-Ary Convolutional Codes for Large and Small Payloads

open access: yesMathematics, 2021
Matrix embedding (ME) code is a commonly used steganography technique, which uses linear block codes to improve embedding efficiency. However, its main disadvantage is the inability to perform maximum likelihood decoding due to the high complexity of ...
Jyun-Jie Wang   +4 more
doaj   +1 more source

THE CONVOLUTIONAL CODESАNALYSIS TECHNIQUE ON THE OPTIMUM BLOCK CODES GROUNDS

open access: yesInformation and Telecommunication Sciences, 2014
The convolutional codes analysis and synthesis technique is proposed. This technique is optimal according to near Shannon's bound criterion and guarantees a given bit error rate from message source.
Leonid Uryvskyi   +2 more
doaj   +1 more source

On the State Approach Representations of Convolutional Codes over Rings of Modular Integers

open access: yesMathematics, 2021
In this study, we prove the existence of minimal first-order representations for convolutional codes with the predictable degree property over principal ideal artinian rings.
Ángel Luis Muñoz Castañeda   +2 more
doaj   +1 more source

A Decoding Algorithm for Convolutional Codes

open access: yesMathematics, 2022
It is shown how the decoding algorithms of Pellikaan and Rosenthal can be coupled to produce a decoding algorithm for convolutional codes. Bounds for the computational cost per decoded codeword are also computed.
Sandra Martín Sánchez   +1 more
doaj   +1 more source

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