Robust modulation formats recognition technique using wavelet transform for high speed optical networks

Latifa Guesmi; Abir Hraghi; Mourad Menif

doi:10.1117/12.2188202

9 September 2015 Robust modulation formats recognition technique using wavelet transform for high speed optical networks

Latifa Guesmi, Abir Hraghi, Mourad Menif

Author Affiliations +

Proceedings Volume 9598, Optics and Photonics for Information Processing IX; 95981F (2015) https://doi.org/10.1117/12.2188202
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

There is a need, for high speed optical communication networks, in the monitoring process, to determine the modulation format type of a received signal. In this paper, we present a new achievement of modulation format recognition technique, where we proposed the use of wavelet transform of the detected signal in conjunction with the artificial neural network (ANN) algorithm. Besides, wavelet transform is one of the most popular candidates of the time-frequency transformations, where the wavelets are generated from a basic wavelet function by dilations and translations. We proved that this technique is capable of recognizing the multi-carriers modulation scheme with high accuracy under different transmission impairments such as chromatic dispersion (CD), differential group delay (DGD) and accumulated amplified spontaneous emission (ASE) noise with different ranges. Both the theoretical analysis and the simulation results showed that the wavelet transform not only can be used for modulation identification of optical communication signals, but also has a better classification accuracies under appropriate OSNR (optical signal-to-noise ratio) values.

Citation Download Citation

Latifa Guesmi, Abir Hraghi, and Mourad Menif "Robust modulation formats recognition technique using wavelet transform for high speed optical networks", Proc. SPIE 9598, Optics and Photonics for Information Processing IX, 95981F (9 September 2015); https://doi.org/10.1117/12.2188202

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KEYWORDS

Modulation

Wavelet transforms

Orthogonal frequency division multiplexing

Wavelength division multiplexing

Continuous wavelet transforms

Optical networks

Signal detection

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