NDLI: Adaptive predistorter using NLMS algorithm for nonlinear compensation in visible-light communication system

Content Provider	IET Digital Library
Author	Kim, Jin Kwan Hyun, Kwangmin Park, Sang Kyu
Abstract	A predistortion method using the adaptive normalised least mean square (NLMS) algorithm is proposed for the estimation of light-emitting diode distortion. The light emission characteristic could change nonlinearly depending on conditions of the physical environment, such as temperature variation, which cannot be ignored, especially in the case of high-power emissions. Instead of using the fixed values of the conventional memory look-up-table (LUT) for nonlinearity compensation, the proposed adaptive NLMS-based predistorter immediately estimates the distortion change according to environmental changes. The simulation results show that the proposed method has better performance than the conventional predistorter employing an LUT.
Starting Page	1457
Ending Page	1459
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 20, Sep (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/20
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.1835
Journal	Electronics Letters
Publisher Date	2014-09-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Normalised Least Mean Square Algorithm Adaptive Predistorter Interpolation And Function Approximation Least Mean Squares Method LED Light Emission Characteristic Light Emitting Diode Light-emitting Diode Look-up-table LUT NLMS Algorithm Nonlinear Compensation Numerical Analysis Optical Communication Predistortion Method Table Lookup Visible Light Communication System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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