Results 21 to 30 of about 72,386 (210)

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

Minimal State-Space Representation of Convolutional Product Codes

open access: yesMathematics, 2021
In this paper, we study product convolutional codes described by state-space representations. In particular, we investigate how to derive state-space representations of the product code from the horizontal and vertical convolutional codes.
Joan-Josep Climent   +3 more
doaj   +1 more source

Research on Block-Based Blind Identification of High-rate Punctured Convolutional Codes

open access: yesMATEC Web of Conferences, 2018
Aiming at the large amount of memory in high bit rate punctured convolutional codes, a soft recognition algorithm based on block Hadamard matrix (B-SWHT) is proposed.
Yan Hua, Huang Ying, Li Baoguo, Lei Jing
doaj   +1 more source

Feedback equivalence of convolutional codes over finite rings

open access: yesOpen Mathematics, 2017
The approach to convolutional codes from the linear systems point of view provides us with effective tools in order to construct convolutional codes with adequate properties that let us use them in many applications.
DeCastro-García Noemí
doaj   +1 more source

An Improved Blind Recognition Method for Synchronization Position and Coding Parameters of k/n Rate Convolutional Codes in a Noisy Environment

open access: yesIEEE Access, 2020
In digital communication systems, error correction codes are used to recover data that has been disturbed in a noisy environment. Convolutional code is a commonly used error correction code. In non-cooperative communication systems, it is very meaningful
Yong Ding, Zhiping Huang, Jing Zhou
doaj   +1 more source

Constructions of Quantum Convolutional Codes [PDF]

open access: yes, 2007
We address the problems of constructing quantum convolutional codes (QCCs) and of encoding them. The first construction is a CSS-type construction which allows us to find QCCs of rate 2/4.
Grassl, Markus, Roetteler, Martin
core   +3 more sources

Weight-2 input sequences of 1/n convolutional codes from linear systems point of view

open access: yesAIMS Mathematics, 2023
Convolutional codes form an important class of codes that have memory. One natural way to study these codes is by means of input state output representations. In this paper we study the minimum (Hamming) weight among codewords produced by input sequences
Victoria Herranz   +2 more
doaj   +1 more source

Decoding of Convolutional Codes over the Erasure Channel

open access: yes, 2011
In this paper we study the decoding capabilities of convolutional codes over the erasure channel. Of special interest will be maximum distance profile (MDP) convolutional codes. These are codes which have a maximum possible column distance increase.
Rosenthal, Joachim   +2 more
core   +1 more source

The dual of convolutional codes over $\mathbb{Z}_{p^r}$

open access: yes, 2016
An important class of codes widely used in applications is the class of convolutional codes. Most of the literature of convolutional codes is devoted to con- volutional codes over finite fields.
Napp, Diego   +3 more
core   +1 more source

Unified quantum convolutional coding [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
We outline a quantum convolutional coding technique for protecting a stream of classical bits and qubits. Our goal is to provide a framework for designing codes that approach the ``grandfather'' capacity of an entanglement-assisted quantum channel for sending classical and quantum information simultaneously.
Wilde, Mark M., Brun, Todd A.
openaire   +2 more sources

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