Treffer: Impulse Response Modeling for Underwater Wireless Optical Communication Links

Title:
Impulse Response Modeling for Underwater Wireless Optical Communication Links
Authors:
SHIJIAN TANG, YUHAN DONG, XUEDAN ZHANG
Source:
IEEE transactions on communications. 62(1):226-234
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2014.
Publication Year:
2014
Physical Description:
print, 32 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, Signal, bruit, Signal, noise, Détection, estimation, filtrage, égalisation, prédiction, Detection, estimation, filtering, equalization, prediction, 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), Télécommunications optiques, Optical telecommunications, Brouillage intersymbole, Intersymbol interference, Interferencia intersímbolo, Caractéristique optique, Optical characteristic, Característica óptica, Conception système, System design, Concepción sistema, Diffusion multiple, Multiple scattering, Difusión múltiple, Egalisation, Equalization, Igualación, Estimation canal, Channel estimation, Estimación canal, Estimation erreur, Error estimation, Estimación error, Estimation paramètre, Parameter estimation, Estimación parámetro, Evaluation performance, Performance evaluation, Evaluación prestación, Fonction gamma, Gamma function, Función gama, Liaison optique, Optical links, Modélisation, Modeling, Modelización, Méthode Monte Carlo, Monte Carlo method, Método Monte Carlo, Port, Harbor, Puerto, Réponse impulsion, Pulse response, Respuesta impulsión, Simulation numérique, Numerical simulation, Simulación numérica, Taux erreur bit, Bit error rate, Tasa error bit, Transmission haut débit, High rate transmission, Transmisión alta caudal, Télécommunication optique, Optical telecommunication, Telecomunicación óptica, Télécommunication sans fil, Wireless telecommunication, Telecomunicación sin hilo, Télécommunication sous marine, Submarine telecommunication, Telecomunicación submarina, Modulation en tout ou rien, On-off keying, Monte Carlo, Underwater wireless optical communications, impulse response
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Shenzhen Key Laboratory of Information Science and Technology, Department of Electronic Engineering, Tsinghua University, China
ISSN:
0090-6778
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=28203672
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.28203672
Database:
PASCAL Archive

Weitere Informationen

In underwater wireless optical communication (UWOC) links, multiple scattering may cause temporal spread of beam pulse characterized by the impulse response, which therefore results in inter-symbol interference (ISI) and degrades system error performance. The impulse response of UWOC links has been investigated both theoretically and experimentally by researchers but has not been derived in simple closed-form to the best of our knowledge. In this paper, we analyze the optical characteristics of seawater and present a closed-form expression of double Gamma functions to model the channel impulse response. The double Gamma functions model fits well with Monte Carlo simulation results in turbid seawater such as coastal and harbor water. The bit-error-rate (BER) and channel bandwidth are further evaluated based on this model for various link ranges. Numerical results suggest that the temporal pulse spread strongly degrades the BER performance for high data rate UWOC systems with on-off keying (OOK) modulation and limits the channel bandwidth in turbid underwater environments. The zero-forcing (ZF) equalization designed based on our channel model has been adopted to overcome ISI and improve the system performance. It is plausible and convenient to utilize this impulse response model for performance analysis and system design of UWOC systems.