Clément Lacoste Email & Phone Number

Luxembourg City, Lu

Luxembourg, Luxembourg

R&D and Software Development for SatCom applications.

Luxembourg, Luxembourg

The project focuses on researching computationally efficient methods to find the optimal set of gateway locations and designs that balances the cost vs quality of service tradeoff for a LEO constellation. This project is implemented using MATLAB.A side project consists in developing a random access procedure simulator following the 5G standard and using a LEO satellite as a base station. This project is implemented using Python.Technical environment:- MATLAB (2021a)- ULHPC (UniLu High Performance Computing)- Python (3.9.7)

Luxembourg

The goal of the Ph.D. was to determine the satellite bandwidth, power, and carrier plan needed for the operations of return satellite networks sensitive to rain fade and its spatial correlation. Several solutions were provided for different fade mitigation technologies thanks to the partnership with SES.- Reduction of bandwidth consumption up to 30% compared to the existing literature. Demonstration of the importance of rain fade correlation, which can increase bandwidth consumption up to 50% compared to existing industrial solutions.- Implementation of a MATLAB link budget simulator for multibeam satellites including uplink, downlink, spatially correlated rain fade, and intra and inter-system interference. Optimization of code for the ULHPC, reducing the execution time by a factor of 30.- Publication of 2 scientific articles, including one in IEEE Transactions on Aerospace and Electronic Systems. A third one is under revisions for the same journal.Technical environment :- MATLAB (2021a)- ULHPC (UniLu High Performance Computing)

Luxembourg

Implementation of various rain attenuation models inside the Systems Evolution team.- Implementation and optimization of MATLAB and VBA functions related to ITU-R P. recommendations. Reduction of execution time from 5 to 0.06 seconds. - MATLAB implementation of a thesis on VSAT frequency plan optimization under rain fade for the return link - Delivery of pre-made link budgets of commonly used DTH video platforms for the solutions engineering team.Technical environment : - MATLAB (2015a) - Excel/VBA

Région De Toulouse, France

Delivered a feasibility study for TOLOSAT cubesat mission, which was initially to measure the altitudeof Earth’s surface using the reflection of GNSS signal. - Delivery of a feasibility study for a 2U cubesat. - Presentation of the conclusions to a CNES expert.

Toulouse Area, France

Modelling of cross-channel interference in UNB signals (SIGFOX-alike) caused by theDoppler effect of LEO satellites. Inspired from a thesis on this topic. - MATLAB implementation of a UNB signal transmission chain between IoT terminals and a LEO satellite. - MATLAB implementation of Doppler shift and cross-channel interference. - Delivery of a report comparing the simulation results to the ones published in the thesis. Technical environment : - MATLAB (2018b)

Master 2 (M2), Satellite Communication Systems

Doctor Of Philosophy - Phd, Computer Science

Resource dimensioning of broadband satellite return networks affected by rain fade

Telecommunications And Networks