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Performance Analysis in ACO-OFDM based OWC Systems by Mitigating Clipping Noise

Published on November 2012 by C. Nithya, R. Sumathy
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International Conference on Electronics, Communication and Information systems
Foundation of Computer Science USA
ICECI - Number 2
November 2012
Authors: C. Nithya, R. Sumathy
16e3ee24-70ea-4df1-bd44-4d3cddc743d7

C. Nithya, R. Sumathy . Performance Analysis in ACO-OFDM based OWC Systems by Mitigating Clipping Noise. International Conference on Electronics, Communication and Information systems. ICECI, 2 (November 2012), 4-6.

@article{
author = { C. Nithya, R. Sumathy },
title = { Performance Analysis in ACO-OFDM based OWC Systems by Mitigating Clipping Noise },
journal = { International Conference on Electronics, Communication and Information systems },
issue_date = { November 2012 },
volume = { ICECI },
number = { 2 },
month = { November },
year = { 2012 },
issn = 0975-8887,
pages = { 4-6 },
numpages = 3,
url = { /specialissues/iceci/number2/9465-1012/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Special Issue Article
%1 International Conference on Electronics, Communication and Information systems
%A C. Nithya
%A R. Sumathy
%T Performance Analysis in ACO-OFDM based OWC Systems by Mitigating Clipping Noise
%J International Conference on Electronics, Communication and Information systems
%@ 0975-8887
%V ICECI
%N 2
%P 4-6
%D 2012
%I International Journal of Computer Applications
Abstract

OFDM transmission in optical wireless channel is established via asymmetrically clipped optical OFDM (ACO-OFDM). Clipping is one of the simplest methods to reduce the high peak to average power ratio (PAPR). Clipping leads to additional in-band distortion and out-of band distortion. In this paper it is proposed to mitigate the clipping noise by iterative reconstruction based method and Channel coding method. The out of band distortion is reduced by filtering and in-band distortion by inserting pilot samples. The clipped samples are reconstructed at the receiver and reduce the clipping noise in the presence of AWGN in channel.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Ofdm Clipping Noise Suppression Iterative Reconstruction Method