On the Impact of the Clipping Techniques on the Performance of Optical OFDM

João Guerreiro, Rui Dinis, Paulo Montezuma

2014

Abstract

Recently, OFDMmodulations are being considered for both optical fiber and wireless optical communications, specially due to their efficiency to combat the inter-symbol interference. Between the modifications of the standard OFDMthat meet the requirements of the incoherent OFDMoptical communications such as the ones that consider intensity modulation/direct detection, the asymmetric clipping optical OFDM and the DC biased optical OFDM techniques are the most popular but both involve an asymmetric clipping operation. Therefore, due to the high sensitivity of OFDM signals to nonlinearities, the nonlinear distortion effects introduced by the asymmetric clipping in the form of in and out-band-distortion should not be neglected. In fact, in order to address the performance of such systems, these distortion effects must be accurately characterized. In this work, by making use of a Gaussian approximation, we study analytically the impact of the asymmetric clipping in the performance of optical OFDM techniques by deriving theoretical expressions for the power spectral density and for the distortion at the subcarrier level, which is a key step to understand the potential performance of these systems.

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Paper Citation


in Harvard Style

Guerreiro J., Dinis R. and Montezuma P. (2014). On the Impact of the Clipping Techniques on the Performance of Optical OFDM . In Proceedings of the 5th International Conference on Optical Communication Systems - Volume 1: OPTICS, (ICETE 2014) ISBN 978-989-758-044-4, pages 51-55. DOI: 10.5220/0005032500510055


in Bibtex Style

@conference{optics14,
author={João Guerreiro and Rui Dinis and Paulo Montezuma},
title={On the Impact of the Clipping Techniques on the Performance of Optical OFDM},
booktitle={Proceedings of the 5th International Conference on Optical Communication Systems - Volume 1: OPTICS, (ICETE 2014)},
year={2014},
pages={51-55},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005032500510055},
isbn={978-989-758-044-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Optical Communication Systems - Volume 1: OPTICS, (ICETE 2014)
TI - On the Impact of the Clipping Techniques on the Performance of Optical OFDM
SN - 978-989-758-044-4
AU - Guerreiro J.
AU - Dinis R.
AU - Montezuma P.
PY - 2014
SP - 51
EP - 55
DO - 10.5220/0005032500510055