Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Maria Freire-Hermelo"'
Autor:
Dipankar Sengupta, Christine Tremblay, Catherine Lepers, Maria Freire-Hermelo, Antoine Lavignotte
Publikováno v:
Journal of Lightwave Technology. 39:6805-6813
Wavelength-dependent power excursions in gain-controlled erbium doped fiber amplifiers (EDFA) is a challenging issue in optical networks. We investigate a launch channel power control method using reinforcement learning (RL) to mitigate the power exc
Dynamic Modulation Format and Wavelength Assignment in Optical Networks using Reinforcement Learning
Publikováno v:
OSA Advanced Photonics Congress 2021.
In this paper, we present the strategy we have adopted to reduce the adding or dropping channel blocking probability using reinforcement learning in comparison with other methods. We demonstrate 27 % reduction with 40 % channel load.
Autor:
Maria Freire-Hermelo, Catherine Lepers, Christine Tremblay, Dipankar Sengupta, Antoine Lavignotte
Publikováno v:
OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF).
Optical amplifiers exhibit wavelength dependent gain resulting in power excursion. We present gain equalization techniques not suitable for flexible optical networks and focus on machine learning as an alternative solution to solve the problem.
Publikováno v:
Optics Express
We report on a record spectral efficient terahertz communication system using a coherent radio-over-fiber (CRoF) approach. High spectral efficient back-to-back and wireless THz transmission around 325 GHz is experimentally demonstrated using a 64-QAM
Publikováno v:
OFC
Scopus-Elsevier
Scopus-Elsevier
We report a coherent Radio-over-Fiber (CRoF) THz communication link supporting both, off-line high data-rate 59 Gbit/s transmission using a record spectral efficient 64-QAM-OFDM modulation as well as real-time HDTV transmission at 328 GHz carrier fre
Autor:
Andreas Stohr, Rattana Chuenchom, Fawad Sheikh, Maria Freire Hermelo, Thomas Kaiser, Vitaly Rymanov, Andreas Czylwik
Publikováno v:
Frequenz
This paper presents photonic-assisted 60 GHz mm-wave and 325 GHz system approaches that enable the transmission of spectral-efficient and high data rate signals over fiber and over air. First, we focus on generic channel characteristics within the mm
Autor:
Andreas Stohr, Yigal Leiba, Maria Freire Hermelo, Jorg Honecker, Nils Schrinski, Sebastian Babiel, Rattana Chuenchom, Xihua Zou, Andreas G. Steffan, Matthias Steeg
Publikováno v:
Journal of Lightwave Technology
An E-band 76-GHz coherent radio-over-fiber (CRoF) system has been developed employing an integrated coherent photonic mixer (CPX) in the radio access unit (RAU) and a Schottky envelope detector in the wireless receiver. The CPX basically consists of