Publications

In 2017, he enrolled in a Master at EPAC through the PHORAN at the University of Abomey Calavi. His end of study project is entitled:

• Performance study of TWDM architecture in the optical access network based adaptative OFDM

Abstract

Fiber-based IM/DD (Intensity Modulation and Direct Detection) transmission systems are subject to the combined effects of the fiber chromatic dispersion and the chirp of the optical sources that limit the data rate of optical access networks. In this thesis, we proposed an alternative to increase the optical access network data rate transmission based on SIPM-OOFDM (Subcarrier Index Power Modulated Optical Orthogonal Frequency Division Multiplexer) modulation using IM/DD TWDM-PON (Time and Wavelength Division Multiplexing Passive Optical Network) optical link. After a comparative study in terms of useful bitrate between DCO-OFDM (DC-biased Optical OFDM) and U-OFDM (Unipolar OFDM) in an AWGN (Additive White Gaussian Noise) channel, we implemented DCO-OFDM (4QAM and 8QAM) and then SIPM-OOFDM in an IM/DD TDM-PON link. The results obtained showed that SIPM-OOFDM has better performance in terms of useful throughput compared to that obtained with 4QAM DCO-OFDM for the same BER (10^-3 in our case).

Furthermore, we showed by simulating a TWDM link at 04 wavelengths with SIPM-OOFDM over a distance of 40 km, that it is possible with the simulated parameters to achieve an aggregate throughput of 46.15 Gb/s to deserve a total of 256 end-users. This suggests that the TWDM-PON architecture associated with SIPM-OOFDM would be a better candidate for NG-PON (Next Generation Passive Optical Network) in optical access networks where an aggregate throughput of 40 Gb/s is needed at 40 km.

Keywords: SIPM-OOFDM, TWDM, TDM-PON link, DCO-OFDM

After obtaining his Bachelor of Science C, he enrolled in Electrical Engineering at IUST-Benin. Her graduation project is titled:

• Etude et amélioration du dispositif de production des boissons gazeuses de la SO.BE.BRA : cas de la marque FAMIX (Réalisé en 2016)

Abstract

Desaeration, Carbonation and dosing are the main steps in the soft drink processing of SOBEBRA. Meanwhile the quantities of CO2 in the carbonated water, as well as the one of sugar have to be strictly controlled. Unfortunately the CO2 and sugar regulating and monitoring system has some malfunctions that imply some huge losses, and its unsafety. The purpose of our project is to design an upgraded regulation system to solve the issues of the current one, as well as to reduce breakdowns at SOBEBRA. So the current system has been upgraded with modern and genuine devices, making possible to modify the working mode and the target data from some screens. A trial unit of liquid level regulation has been assembled, based on the cabling diagram we did. Then we could make a partial achievement of the new system. The results are good enough to let us assess that the goals of this project as a designing job have been achieved.