End-to-End Real-Time Demonstration of the Slotted, SDN-Controlled NEPHELE Optical Datacenter Network

Autor: Konstantinos Tokas, Giannis Patronas, Christos Spatharakis, Paraskevas Bakopoulos, Angelos Kyriakos, Giada Landi, Eitan Zahavi, Kostas Christodoulopoulos, Muzzamil Aziz, Richard Pitwon, Domenico Gallico, Dionysios Reisis, Emmanouel Varvarigos, Hercules Avramopoulos

Publikováno v: Photonics, Vol 7, Iss 2, p 44 (2020)

The NEPHELE hybrid electro-optical datacenter network (DCN) architecture is proposed as a dynamic network solution to provide high capacity, scalability, and cost efficiency in comparison to the existing DCN infrastructures. The details of the NEPHEL

Externí odkaz: https://doaj.org/article/73db4a49422d42cba0664939ffda9606

Modeling Filtering Penalties in ROADM-based Networks with Machine Learning for QoT Estimation

Autor: Kostas Christodoulopoulos, Ricardo Martinez, Salvatore Spadaro, Raul Munoz, Ankush Mahajan

Publikováno v: OFC
Scopus-Elsevier
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Optical Fiber Communication Conference (OFC) 2020

Monitoring 3dB bandwidth and other spectrum related parameters at ROADMs provides information about quality of their filters. We propose a machine-learning model to estimate end-toend filtering penalty for more accurate QoT estimation of future conne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfa08c78d7a13bf3c23b82b69c2b3416
https://doi.org/10.1364/ofc.2020.th3d.4

Simplifying Optical DCN Fabrics with Blocking Space Switching and Wavelength-Constrained WDM

Autor: Kostas Christodoulopoulos, Emmanouel Varvarigos, Konstantinos Kontodimas

Publikováno v: Lecture Notes in Computer Science
23th International IFIP Conference on Optical Network Design and Modeling (ONDM)
23th International IFIP Conference on Optical Network Design and Modeling (ONDM), May 2019, Athens, Greece. pp.286-298, ⟨10.1007/978-3-030-38085-4_25⟩
Optical Network Design and Modeling ISBN: 9783030380847
ONDM

Part 1: Regular Papers; International audience; The introduction of all-optical switching in data center interconnection networks (DCN) is key to addressing some of the shortcomings of state-of-the-art electronic switched solutions. Limitations in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be861d7b7e6b9e220bea0b06082b2620
https://hal.inria.fr/hal-03200671/document

DEPLOY Tool: Incrementally Planning Marginless Elastic Optical Networks

Autor: Kostas Christodoulopoulos, Emmanouel Varvarigos, Polizois Soumplis, A. Kretsis

Publikováno v: ICTON

Currently, the hardware (equipment) and software (including planning and operation tools) are both provided by optical equipment vendors, leading to the so called vendor lock. We present DEPLOY, a tool for planning and operating optical networks that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37aaf1cc3a6731b0f7ba498517c02d91
https://doi.org/10.1109/icton.2018.8473639

Experimental demonstration of a fully disaggregated and automated white box comprised of different types of transponders and monitors

Autor: Giacomo Bernini, Hercules Avramopoulos, Kostas Christodoulopoulos, Piero Castoldi, A. Kretsis, N. Argyris, Camille Delezoide, Francesco Fresi, Giannis Kanakis, Andrea Sgambelluri, Nicola Sambo, Pietro G. Giardina, Emmanuel Varvarigos

White boxes, originally introduced in data centers, are expected to soon also penetrate the market of wide area networks, since operators see them as a way to drive down capital expenditure. Indeed, white boxes can be composed of modules from differe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64dbb460bde66e2108fa3ae7b4a7c31b
http://hdl.handle.net/11382/527127