DI-UMONS : Dépôt institutionnel de l’université de Mons

Recherche transversale
Rechercher
(titres de publication, de périodique et noms de colloque inclus)
2018-10-23 - Travail avec promoteur/Doctorat - Anglais - 172 page(s)

Nguyen Tu Thanh , "Advanced Digital Signal Processing for Multicarrier Modulation Based Coherent Optical Transmissions", Mégret Patrice (p) , Wuilpart Marc , soutenue le 2018-10-23

  • Codes CREF : Technologie des télécommunications [transmission] (DI2556), Technologie des télécommunications [télécommunications] (DI2550)
  • Jury : Gosselin Bernard (p) , Moeyaert Véronique , Turitsyn S.K., Yakusheva Tatiana, Horlin François, Jaouen Yves
  • Unités de recherche UMONS : Electromagnétisme et Télécommunications (F108)
  • Instituts UMONS : Institut de Recherche en Technologies de l’Information et Sciences de l’Informatique (InforTech)
  • Centres UMONS : Centre de Recherche en Technologie de l’Information (CRTI)

Abstract(s) :

(Anglais) The thesis first gives a numerical demonstration of multicarrier modulation (MCM) applications for realizing next generation transponders (terabit-per-second scale). Two potential candidates among MCM, i.e. orthogonal frequency division multiplexing (OFDM) and filter band multicarrier (FBMC), are taken into account for performance evaluations and comparisons. Nonetheless, multicarrier signals have several issues such as their susceptibility to phase noise (PN) and fiber nonlinear effects. To overcome the PN problem, several low complexity and high performance digital signal processing (DSP) algorithms are proposed for both OFDM and FBMC-based transmissions, followed by intensively numerical and experimental demonstrations. One chapter of the thesis is dedicated to fiber nonlinear mitigation technique for OFDM-based systems by employing support vector machine. Compared to other existing techniques, these above-mentioned DSP proposals provide superior performance and/or lower complexities. Thus, they should be considered while designing next generation optical networks