Results 41 to 50 of about 20,900 (152)

Turbo codes and turbo algorithms

Journal of Communications Software and Systems, 2006
In the first part of this paper, several basic ideas that prompted the coming of turbo codes are commented on. We then present some personal points of view on the main advances obtained in past years on turbo coding and decoding such as the circular ...
Claude Berrou, Charlotte Langlais, Yi Yu
doaj  

Design and Implementation of Adaptive Turbo Encoder for Quantized Software Defined Low-Power DVB-RCS Radios [PDF]

Telfor Journal, 2010
Turbo codes are employed in every robust wireless digital communications system. Those codes have been adopted for the satellite return channel in DVB-RCS (Return Channel via Satellite) standard. In Software Defined Radios (SDRs), Field Programmable Gate
S. H. Elramly, S. W. Shaker
doaj  

Using large language models to complement humans for the coding of social media interactions between science teachers

Discover Education
This methodological paper investigates the viability of using Large Languages Models (LLMs) for the use of qualitative coding of posts to Facebook groups for science teachers.
Robertson Burgess, Katie Waters, Erika Spray, Elena Prieto-Rodriguez   +3 more
doaj   +1 more source

Improvement of Channel Coding System in Narrowband Communication System

Dianxin kexue, 2013
With the advantages of low complexity and easy implementation，convolution code is widely used in practical communication systems. However，the requirement of higher transmission power in tactical environment of long distance transmission and higher ...
Yanjun Wang, Jing Yue, Xue Cui
doaj   +2 more sources

Comparison between Modified Bahl, Cocke, Jelinek, and Raviv (BCJR) and Soft Output Viterbi Algorithm (SOVA) Decoders Over Additive White Gaussian Noise (AWGN) Channel

Journal of Engineering and Sustainable Development, 2007
urbo codes are suitable for deep-space communications, because of the codes astonishing performance at low values of signal to noise ratio (SNR) and their ability to achieve near Shannon limit of channel capacity.
Maha George Zia, Khaleel Abdul Khader Saleh   +1 more
doaj  

Low-Complexity Decoding of Block Turbo-Coded System with Antenna Diversity

EURASIP Journal on Advances in Signal Processing, 2003
The goal of this paper is to reduce the decoding complexity of space-time block turbo-coded system with low performance degradation. Two block turbo-coded systems with antenna diversity are considered.
Chen Yanni, Parhi Keshab K
doaj   +1 more source

The Performance of Turbo Coded Orthogonal Frequency Division Multiplexing System over Flat Rayleigh Fading Channel

Journal of Engineering and Sustainable Development, 2009
This work investigates the effectiveness of Turbo Codes and Orthogonal Frequency Division Multiplexing (OFDM) system, for communication over the flat Rayleigh fading additive white Gaussian noise (AWGN) channel. The Fast Fourier Transform (FFT) is used
Khamis A. Zidan, Raghad Z. Al-Macdici, Fadel S. Hassen, Noor Al-Mahdaoy   +3 more
doaj  

Turbo coding

Περίληψη: Οι κώδικες Turbo ανήκουν στην κλάση των υψηλής απόδοσης κωδίκων διόρθωσης λαθών και είναι οι πρώτοι πρακτικοί κώδικες οι οποίοι πετυχαίνουν σε απόδοση το όριο του Shannon. Οι κώδικες Turbo χρησιμοποιούνται στα κινητά δίκτυα 3G και 4G, στο πρώτυπο WiMAX, και στις δορυφορικές επικοινωνίες καθώς και σε διάφορες εφαρμογές όπου οι σχεδιαστές ...
Δελης Γεωργιος http://users.isc.tuc.gr/~gdelis, Delis Georgios http://users.isc.tuc.gr/~gdelis   +1 more
openaire   +1 more source

Turbo code

Scholarpedia, 2010
Claude Berrou, Sylvie Kerouédan
openaire   +1 more source

Blind recognition of channel codes based on dual-branch feature fusion convolutional neural networks. [PDF]

Sci Rep
Ma Y, Lei Y, Liu C, Wang W, Teng F, Peng C, Jin H, Feng H, Zhang M, Pan Y.   +9 more
europepmc   +1 more source