Treffer: An Optimum DC-Biasing for DCO-OFDM System

Title:
An Optimum DC-Biasing for DCO-OFDM System
Authors:
MINGXUAN ZHANG, ZAICHEN ZHANG
Source:
IEEE communications letters. 18(8):1351-1354
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2014.
Publication Year:
2014
Physical Description:
print, 9 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, Multiplexage, Multiplexing, Borne supérieure, Upper bound, Cota superior, Code longueur variable, Variable length code, Código longitud variable, Ecrêtage, Clipping, Descrestación, Erreur quadratique moyenne, Mean square error, Error medio cuadrático, Fréquence optique, Optical frequency, Frecuencia óptica, Masquage, Masking, Enmascaramiento, Multiplexage fréquence orthogonal, Orthogonal frequency division multiplexing, Multiplaje frecuencia ortogonal, Méthode numérique, Numerical method, Método numérico, Métrique, Metric, Métrico, Optimisation, Optimization, Optimización, Programmation non convexe, Non convex programming, Programación no convexa, Rapport énergie pointe moyenne, Peak to average power ratio, Relación energía punta promedia, Rayonnement visible, Visible radiation, Radiación visible, Signal électrique, Electrical signal, Señal eléctrica, Simulation, Simulación, Taux erreur bit, Bit error rate, Tasa error bit, DC bias, Visible light communication (VLC), clipping, orthogonal frequency division multiplexing (OFDM)
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
ISSN:
1089-7798
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=28807877
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.28807877
Database:
PASCAL Archive

Weitere Informationen

Selecting an appropriate direct current (dc) bias is crucial to obtain positive and low-peak-to-average-power-ratio electrical signals in the dc optical orthogonal frequency-division multiplexing (DCO-OFDM) system. In this letter, our goal is to propose an optimization strategy of dc bias under given lower and upper clipping bounds. We characterize the mean square error between the original signals and the clipped ones as the metric of clipping distortion. Finding the optimum dc bias can be formulated as a nonconvex optimization problem. However, the optimum dc bias can be obtained from a numerical method. The simulation results show that the bit error ratio performance can be improved when employing the optimum dc bias obtained by the proposed numerical method.