Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Patryk Urban"'
Autor:
Aleksejs Udalcovs, Marco Levantesi, Patryk Urban, Darli A. A. Mello, Roberto Gaudino, Oskars Ozolins, Paolo Monti
Publikováno v:
IEEE Access, Vol 8, Pp 223562-223573 (2020)
The article analyzes the total cost of ownership (TCO) of 5G fronthauling solutions based on analog and digital radio-over-fiber (RoF) architectures in cloud radio access networks (C-RANs). The capital and operational expenditures (CAPEX, OPEX) are a
Externí odkaz:
https://doaj.org/article/2dd00e4e80224ca4b24ec8bef55bb44c
Autor:
Michalina Kamińska, Patryk Urbański
Publikováno v:
Advances in Sciences and Technology, Vol 18, Iss 7, Pp 215-228 (2024)
The article analyzes the environmental costs of Diesel Multiple Unit and Diesel Railcars operated in Poland. It consisted in determining the annual cost of gases and particulate matter emitted into the ambient air by the analyzed rolling stock. For t
Externí odkaz:
https://doaj.org/article/e5388566168c4e0b810443eaac6abe91
Autor:
Paolo Monti, Patryk Urban, Aleksejs Udalcovs, Marco Levantesi, Roberto Gaudino, Darli A. A. Mello, Oskars Ozolins
Publikováno v:
IEEE Access, Vol 8, Pp 223562-223573 (2020)
The article analyzes the total cost of ownership (TCO) of 5G fronthauling solutions based on analog and digital radio-over-fiber (RoF) architectures in cloud radio access networks (C-RANs). The capital and operational expenditures (CAPEX, OPEX) are a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b26e645efce980c2b51742c3d4bb47a4
https://ieeexplore.ieee.org/document/9293022/
https://ieeexplore.ieee.org/document/9293022/
Autor:
L. E. Ynoquio Herrera, Felipe Calliari, Patryk Urban, J. P. von der Weid, D. Villafani Caballero
Publikováno v:
Optics Communications. 452:195-199
We experimentally demonstrate an optical transmitter with embedded Auxiliary Management and Control Channel (AMCC) and in-service Optical Time Domain Reflectometer (OTDR) for Long Term Evolution-Advanced (LTE-A) data transmission in mobile fronthaul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd764483ffaa70da88c2c08ac5e83cff
https://doi.org/10.1016/j.optcom.2019.07.018
https://doi.org/10.1016/j.optcom.2019.07.018
Autor:
David Patel, Eslam El-Fiky, David V. Plant, Mathieu Chagnon, Alireza Samani, Stephane Lessard, Fabio Cavaliere, Ramon Gutierrez-Castrejon, Gemma Vall-Llosera, Boris Dortschy, Ghulam Saber, Patryk Urban, Rui Li, Mohamed Morsy-Osman
Publikováno v:
Optics Communications. 450:48-60
Providing a low-cost, reliable and end-to-end quality of service (QoS) guaranteed connectivity is going to be a major challenge in optical transport due to the immense growth in number of connected devices and traffic volume triggered by fifth-genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d81b8e1d57201054f874c533975d3f64
https://doi.org/10.1016/j.optcom.2019.05.027
https://doi.org/10.1016/j.optcom.2019.05.027
Autor:
Zhenping Xing, Luhua Xu, Stephane Lessard, Fabio Cavaliere, Eslam El-Fiky, Alireza Samani, Patryk Urban, Ghulam Saber, Boris Dortschy, Gemma Vall-Llosera, Mohamed Morsy-Osman, Samiul Alam, Kh Arif Shahriar, David V. Plant, David Patel
Publikováno v:
IEEE Photonics Technology Letters. 31:799-802
We demonstrate 25 and 50 Gb/s four-level pulse amplitude modulation (PAM-4) transmission over 43- and 21-km standard single-mode fiber (SMF), respectively, using a silicon photonic 120° hybrid-based integrated simplified coherent receiver in the $C$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8111192331be547abae5fdeb22d26a0
https://doi.org/10.1109/lpt.2019.2909016
https://doi.org/10.1109/lpt.2019.2909016
Autor:
Eslam El-Fiky, Patryk Urban, Stephane Lessard, Md. Ghulam Saber, David V. Plant, Boris Dortschy, Fabio Cavaliere, Mohamed Morsy-Osman, Gemma Vall-Llosera, Michael Hui
Publikováno v:
IEEE Photonics Technology Letters. 30:1547-1550
We demonstrate 25-Gbit/s four-level pulse amplitude modulation transmission over 28-km standard single-mode fiber using an off-the-shelf 10-Gbit/s electro-absorption modulated laser and a 3 × 3 fiber splitter based simplified coherent receiver in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b49f2b66be91a05cbdbb6d0b7a7b6ee
https://doi.org/10.1109/lpt.2018.2859158
https://doi.org/10.1109/lpt.2018.2859158
Autor:
Jean Pierre von der Weid, Patryk Urban, Gustavo C. Amaral, Renata G. Leibel, Luis E. Y. Herrera
Publikováno v:
Fiber and Integrated Optics. 37:314-327
Intermodulation distortion (IMD) in Analog Radio-over-Fiber (a-RoF) poses a severe limitation to achievable error-free transmission. In this work, an optical feed-forward linearization scheme is presented and compared to an electrical pre-distortion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::642a4a56b42bbdce3f99b85e625521d6
https://doi.org/10.1080/01468030.2018.1511010
https://doi.org/10.1080/01468030.2018.1511010
Autor:
Ewa Weinert-Raczka, Jean Pierre von der Weid, Gustavo C. Amaral, Grzegorz Zeglinski, Patryk Urban
Publikováno v:
IEEE Communications Surveys & Tutorials. 20:2742-2757
Radio access networks must evolve to meet future communication requirements. One of the development directions is the future radio base station architecture and its functional splits. The very last connectivity segment to a simple antenna unit is ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5061bac2cc346e36a3855d04c00909ad
https://doi.org/10.1109/comst.2018.2846747
https://doi.org/10.1109/comst.2018.2846747
Autor:
Jean Pierre von der Weid, Gustavo C. Amaral, Bruno Fanzeres, Joaquim Dias Garcia, Patryk Urban
Publikováno v:
IEEE Photonics Technology Letters. 29:1116-1119
We present a monitoring technique that can be directly integrated in the sub-carrier multiplexing (SCM) transceiver for PtP and wavelength division multiplexing and sub-carrier multiplexing passive optical networks applications. The technique is base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97beed424e8270277a326679093b0987
https://doi.org/10.1109/lpt.2017.2706422
https://doi.org/10.1109/lpt.2017.2706422