Treffer: Sending a Laplacian Source Using Hybrid Digital-Analog Codes

Title:
Sending a Laplacian Source Using Hybrid Digital-Analog Codes
Authors:
ABBASI, Fariba, AGHAGOLZADEH, Ali, BEHROOZI, Hamid
Source:
IEEE transactions on communications. 62(7):2544-2557
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2014.
Publication Year:
2014
Physical Description:
print, 47 ref
Original Material:
INIST-CNRS
Subject Terms:
Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Telecommunications et theorie de l'information, Telecommunications and information theory, Théorie de l'information, du signal et des communications, Information, signal and communications theory, Théorie du signal et des communications, Signal and communications theory, Codage, codes, Coding, codes, Télécommunications, Telecommunications, Systèmes, réseaux et services de télécommunications, Systems, networks and services of telecommunications, Transmission et modulation (techniques et équipements), Transmission and modulation (techniques and equipments), Borne inférieure, Lower bound, Cota inferior, Bruit additif, Additive noise, Ruido aditivo, Bruit blanc gaussien additif, AWGN, Bruit blanc, White noise, Ruido blanco, Canal Rayleigh, Rayleigh channels, Canal évanouissement, Fading channels, Codage linéaire, Linear coding, Codificación lineal, Codage source canal, Joint source channel coding, Codificación fuente canal, Compression bande passante, Passband compression, Compresión banda pasante, Désadaptation, Mismatching, Desadaptación, Erreur absolue, Absolute error, Error absoluto, Evaluation performance, Performance evaluation, Evaluación prestación, Laplacien, Laplacian, Laplaciano, Rapport signal bruit, Signal to noise ratio, Relación señal ruido, Simulation numérique, Numerical simulation, Simulación numérica, Source sans mémoire, Memoryless source, Fuente sin memoria, Erreur absolue moyenne, Mean absolute error, Additive white Laplacian noise (AWLN) channel, bandwidth compression/expansion, hybrid digital-analog (HDA) codes, joint source-channel coding, non-linear analog coding
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Information Systems and Security Lab (ISSL), Sharif University of Technology, Tehran 11365-9363, Iran, Islamic Republic of
Faculty of Electrical and Computer Engineering, Babol University of Technology, Babol 471487-1167, Iran, Islamic Republic of
Department of Electrical Engineering, Sharif University of Technology, Tehran 11365-9363, Iran, Islamic Republic of
ISSN:
0090-6778
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=28721872
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Telecommunications and information theory
Accession Number:
edscal.28721872
Database:
PASCAL Archive

Weitere Informationen

In this paper, we study transmission of a memoryless Laplacian source over three types of channels: additive white Laplacian noise (AWLN), additive white Gaussian noise (AWGN), and slow flat-fading Rayleigh channels under both bandwidth compression and bandwidth expansion. For this purpose, we analyze two well-known hybrid digital-analog (HDA) joint source-channel coding schemes for bandwidth compression and one for bandwidth expansion. Then we obtain achievable (absolute-error) distortion regions of the HDA schemes for the matched signal-to-noise ratio (SNR) case as well as the mismatched SNR scenario. Using numerical examples, it is shown that these schemes can achieve a distortion very close to the provided lower bound (for the AWLN channel) and to the optimum performance theoretically attainable bound (for AWGN and Rayleigh fading channels) on mean-absolute error distortion under matched SNR conditions. In addition, a non-linear analog coding scheme is analyzed, and its performance is compared to the HDA schemes for bandwidth compression under both matched and mismatched SNR scenarios. The results show that the HDA schemes outperform the non-linear analog coding over the whole CSNR region.