Title :
Analysis of clipping noise in visible light communications
Author :
Fisne, Alparslan ; Toker, Cenk
Author_Institution :
REHIS EHGYM Bolumu, Aselsan A.r., Ankara, Turkey
Abstract :
The purpose of this study is to calculate the inter-carrier interference in visible light communications due to clipping of the OFDM signal and also to examine the distribution of these interferences. The proposed method is presented as prestudy for the methods which increase the spectrum efficiency in Asymmetrically Clipping Optical OFDM (ACO-OFDM) technique. Taylor Series Expansion is used to express the interference signal caused by the clipping process. In contrast to Bussgang model that presents statistical approach, this study aims to find deterministic expression of clipping noise. It is pointed out that the clipping noise model is a Gaussian distribution with respect to the simulations.
Keywords :
Gaussian distribution; OFDM modulation; intercarrier interference; light interference; optical communication; optical modulation; radio spectrum management; ACO-OFDM technique; Gaussian distribution; OFDM signal; Taylor series expansion; asymmetrically clipping optical OFDM technique; clipping noise analysis; intercarrier interference calculation; interference signal; spectrum efficiency; visible light communications; Interference; Noise; Nonlinear optics; OFDM; Optical distortion; Optical noise; Wireless communication; clipping noise; nonlinear distortion; optical wireless communication;
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2015 23th
Conference_Location :
Malatya
DOI :
10.1109/SIU.2015.7130176
