Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Petr Chvojka"'
Autor:
Mojtaba Mansour Abadi, Pavel Hazdra, Jan Bohata, Petr Chvojka, Paul Anthony Haigh, Zabih Ghassemlooy, Stanislav Zvanovec
Publikováno v:
IEEE Access, Vol 8, Pp 135722-135729 (2020)
With the emergence of the fifth generation and beyond mobile networks, both visible light communications (VLC) and radio frequency (RF) or millimetre wave (mmW) systems are expected to maintain the connectivity in various environments. In outdoor env
Externí odkaz:
https://doaj.org/article/34ca5db80d2745e9aa761b0c2b8ca4b8
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-7 (2019)
In this paper, a hybrid free-space optical and visible light communication (FSO/VLC) system was experimentally demonstrated as a solution to overcome the last mile and last meter access networks bandwidth bottleneck. We evaluate the system performanc
Externí odkaz:
https://doaj.org/article/d08a75f0244c4dc09c022b091fe05ecb
Publikováno v:
IEEE Access, Vol 7, Pp 168922-168933 (2019)
The concept of device-to-device (D2D) communication, combining common radio frequency (RF) and visible light communication (VLC), is seen as a feasible way how to cope with spectrum crunch in the RF domain and how to maximize spectral efficiency in g
Externí odkaz:
https://doaj.org/article/d477914d88964416b5743dd10223a1eb
Autor:
Petr Chvojka, Khald Werfli, Stanislav Zvanovec, Paul Anthony Haigh, Vaclav Hubata Vacek, Petr Dvorak, Petr Pesek, Zabih Ghassemlooy
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 5, Pp 1-12 (2017)
In pulse shaping filters, parameters such as the roll-off factor and the symbol span, which determine the overall performance, are of great importance when implementing a real-time system due to limited hardware resources. In this paper, we experimen
Externí odkaz:
https://doaj.org/article/c86bb6648b074efc853faca070aa1a7c
Publikováno v:
Tělesná Kultura, Vol 38, Iss 1, Pp 9-29 (2015)
BACKGROUND: Muscle strength is an important factor in soccer from the performance and health perspective. There is a lack of knowledge about changes in muscle strength of the knee flexors and extensors and their ratios during annual training cycle. O
Externí odkaz:
https://doaj.org/article/8b41df04c36e4eecb0e927418fda8b04
Autor:
Petr Pešek, Stanislav Zvanovec, Petr Chvojka, Manav R. Bhatnagar, Zabih Ghassemlooy, Prakriti Saxena
Publikováno v:
Sensors, Vol 18, Iss 4, p 1125 (2018)
In this paper, we investigate relay-assisted visible light communications (VLC) where a mobile user acts as a relay and forwards data from a transmitter to the end mobile user. We analyse the utilization of the amplify-and-forward (AF) and decode-and
Externí odkaz:
https://doaj.org/article/2c364b4f5426452fbbcf6d551451064c
Autor:
Xicong Li, Zabih Ghassemlooy, Stanislav Zvanovec, Luis Nero Alves, Monica Figueiredo, Min Zhang, Sreelal Maravanchery Mana, Volker Jungnickel, Petr Chvojka
Publikováno v:
Journal of Lightwave Technology. 40:2409-2426
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61b5825d014ff8590aa01808d3d2dd8e
https://doi.org/10.1109/jlt.2021.3135468
https://doi.org/10.1109/jlt.2021.3135468
Autor:
Jan Bohata, Zabih Ghassemlooy, Pavel Hazdra, Petr Chvojka, Paul Anthony Haigh, Stanislav Zvanovec, Mojtaba Mansour Abadi
Publikováno v:
IEEE Access, Vol 8, Pp 135722-135729 (2020)
With the emergence of the fifth generation and beyond mobile networks, both visible light communications (VLC) and radio frequency (RF) or millimetre wave (mmW) systems are expected to maintain the connectivity in various environments. In outdoor env
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2581672f57d16cbed1370a0d4e7439f
https://ieeexplore.ieee.org/document/9133057/
https://ieeexplore.ieee.org/document/9133057/
Autor:
Shivani Rajendra Teli, Stanislav Vítek, Rafael Perez-Jimenez, Stanislav Zvanovec, Petr Chvojka, Zabih Ghassemlooy
Publikováno v:
IEEE Journal of Lightwave Technology
IEEE internet of things journal
IEEE internet of things journal, IEEE, In press, pp.1-1. ⟨10.1109/JIOT.2021.3098181⟩
IEEE Internet of Things Journal
IEEE Internet of Things Journal, IEEE, In press, pp.1-1. ⟨10.1109/JIOT.2021.3098181⟩
IEEE internet of things journal
IEEE internet of things journal, IEEE, In press, pp.1-1. ⟨10.1109/JIOT.2021.3098181⟩
IEEE Internet of Things Journal
IEEE Internet of Things Journal, IEEE, In press, pp.1-1. ⟨10.1109/JIOT.2021.3098181⟩
International audience; Visible light communications (VLC) is an emerging technology utilizing light emitting diodes and photodetectors (PDs) and cameras (i.e., image sensors (ISs)) as the transmitter and receivers (Rx), respectively for simultaneous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::077df39ec51a7810673d66bf870ee824
Publikováno v:
IEEE Access, Vol 7, Pp 168922-168933 (2019)
The concept of device-to-device (D2D) communication, combining common radio frequency (RF) and visible light communication (VLC), is seen as a feasible way how to cope with spectrum crunch in the RF domain and how to maximize spectral efficiency in g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c19daba3dbb03ba8443d9fb4d0fd05be
https://doi.org/10.1109/access.2019.2954049
https://doi.org/10.1109/access.2019.2954049