Results 31 to 40 of about 183,434 (340)

Convolutional-Code-Specific CRC Code Design

open access: yes, 2015
Cyclic redundancy check (CRC) codes check if a codeword is correctly received. This paper presents an algorithm to design CRC codes that are optimized for the code-specific error behavior of a specified feedforward convolutional code.
Daneshrad, Babak   +2 more
core   +1 more source

A Robust Watermarking Scheme in YCbCr Color Space Based on Channel Coding

open access: yesIEEE Access, 2019
The rapid development of big data and cloud computing technologies greatly accelerate the spreading and utilization of images and videos. The copyright protection for images and videos is becoming increasingly serious.
Yun Tan   +5 more
doaj   +1 more source

Simple Rate-1/3 Convolutional and Tail-Biting Quantum Error-Correcting Codes

open access: yes, 2005
Simple rate-1/3 single-error-correcting unrestricted and CSS-type quantum convolutional codes are constructed from classical self-orthogonal $\F_4$-linear and $\F_2$-linear convolutional codes, respectively.
Forney, Jr., G. David, Guha, Saikat
core   +2 more sources

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

Space-Time Convolutional Codes over Finite Fields and Rings for Systems with Large Diversity Order

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
We propose a convolutional encoder over the finite ring of integers modulo pk,ℤpk, where p is a prime number and k is any positive integer, to generate a space-time convolutional code (STCC).
B. F. Uchôa-Filho   +1 more
doaj   +2 more sources

APPLICATION OF NON-TEST METHODS FOR CHANEL ESTIMATION

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2018
The possibilities  of increasing  the data  rate of adaptive HF communication systems by reducing  redundancy in the  form  of test  signals  used  for its operation are  considered.
M. L. Maslakov, M. S. Smal
doaj   +1 more source

Deriving Good LDPC Convolutional Codes from LDPC Block Codes [PDF]

open access: yes, 2010
Low-density parity-check (LDPC) convolutional codes are capable of achieving excellent performance with low encoding and decoding complexity. In this paper we discuss several graph-cover-based methods for deriving families of time-invariant and time ...
Ali E. Pusane   +4 more
core   +1 more source

A Fast Method for Blind Identification of Punctured Convolutional Codes [PDF]

open access: yesRadioengineering, 2018
The existing method for blind identification of a punctured convolutional code involves searching for dual words and the puncturing pattern exhaustively.
S. N. Han, M. Zhang, X. H. Li
doaj  

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

On Cyclic Convolutional Codes [PDF]

open access: yesActa Applicandae Mathematica, 2004
50 ...
Gluesing-Luerssen, Heide   +1 more
openaire   +3 more sources

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