Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Pedro Sebastiao"'
Autor:
Joseanne Viana, Joao Madeira, Nidhi, Pedro Sebastiao, Francisco Cercas, Albena Mihovska, Rui Dinis
Publikováno v:
IEEE Access, Vol 10, Pp 30959-30973 (2022)
Unmanned aerial vehicles (UAVs) are the next technology to be incorporated into a telecommunications network to improve command and control on a large scale in both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions. However, there is still
Externí odkaz:
https://doaj.org/article/d6304b9bfa2541b7a06df002d00511ea
Publikováno v:
IEEE Access, Vol 9, Pp 165504-165516 (2021)
The radio frequency spectrum is getting more congested day by day due to the growth of wireless devices, applications, and the arrival of fifth generation (5G) mobile communications. This happens because the radio spectrum is a natural resource that
Externí odkaz:
https://doaj.org/article/bd0645b0bbbb4841894024974db2eb55
Autor:
Americo M. C. Correia, Nuno M. B. Souto, Pedro Sebastiao, David Gomez-Barquero, Manuel Fuentes
Publikováno v:
IEEE Access, Vol 8, Pp 22136-22144 (2020)
This paper considers the transmission of scalable video via broadcast and multicast to increase spectral and energy efficiency in cellular networks. To address this problem, we study the use of generalized spatial modulation (GSM) combined with non-o
Externí odkaz:
https://doaj.org/article/bfeda013681643f8a0de22a721d8b734
Autor:
Paulo M. Pina, Andre F. Godinho, Daniel F. S. Fernandes, Diogo J. A. Clemente, Pedro Sebastiao, Gabriela E. Soares, Lucio S. Ferreira
Publikováno v:
IEEE Access, Vol 8, Pp 69671-69682 (2020)
Over the years, mobile networks have grown exponentially due to rising demand. These networks mix different types of cells, which makes manual configuration difficult, costly and tedious. Furthermore, inefficiencies stemming from these problems can c
Externí odkaz:
https://doaj.org/article/3acf5822945d4ca1a27228edf652922d
Autor:
Daniel Fernandes, Diogo Clemente, Gabriela Soares, Pedro Sebastiao, Francisco Cercas, Rui Dinis, Lucio S. Ferreira
Publikováno v:
IEEE Access, Vol 8, Pp 66456-66474 (2020)
One of the main concerns of telecommunications operators is related to network coverage. A weak coverage can lead to a performance decrease, not only in the user experience, when using the operators' services, such as multimedia streaming, but also i
Externí odkaz:
https://doaj.org/article/8f616a1c8b484b6b8f104ec0e3563348
Publikováno v:
Cuadernos.info; 2024, Issue 59, p160-182, 23p
Autor:
Sonia Pedro Sebastiao, Isabel Soares
Publikováno v:
Journal of Communication Management. 27:207-225
PurposeThe concept of environmental diplomacy appears associated with events (conventions) promoted between states and transnational organisations to discuss aspects related to regulating the use of natural resources and regulating pollution. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::714774537eae75ed8b9c3ed5bb2dd08c
https://doi.org/10.1108/jcom-04-2022-0030
https://doi.org/10.1108/jcom-04-2022-0030
Publikováno v:
2022 IEEE Globecom Workshops (GC Wkshps).
Increasing the cardinality of categorical variables might decrease the overall performance of machine learning (ML) algorithms. This paper presents a novel computational preprocessing method to convert categorical to numerical variables ML algorithms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cde29499d27cf8e5a79390aa29ea0362
https://doi.org/10.1109/gcwkshps56602.2022.10008757
https://doi.org/10.1109/gcwkshps56602.2022.10008757
Autor:
Joseanne Viana, Hamed Farkhari, Luis Miguel Campos, Pedro Sebastiao, Katerina Koutlia, Sandra Lagen, Luis Bernardo, Rui Dinis
Publikováno v:
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall).
When users exchange data with Unmanned Aerial Vehicles - (UAVs) over Air-to-Ground - (A2G) wireless communication networks, they expose the link to attacks that could increase packet loss and might disrupt connectivity. For example, in emergency deli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57f3c3c55c80a5468f2de17b1668c225
https://doi.org/10.1109/vtc2022-fall57202.2022.10012726
https://doi.org/10.1109/vtc2022-fall57202.2022.10012726
Autor:
Joseanne Viana, Hamed Farkhari, Luis Miguel Campos, Pedro Sebastiao, Francisco Cercas, Luis Bernardo, Rui Dinis
Publikováno v:
2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring).
Unmanned aerial vehicle (UAV) systems are vulnerable to jamming from self-interested users who utilize radio devices to disrupt UAV transmissions. The vulnerability occurs due to the open nature of air-to-ground (A2G) wireless communication networks,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73ebd62e9fa1ee96e682a31498da1ffd
https://doi.org/10.1109/vtc2022-spring54318.2022.9860816
https://doi.org/10.1109/vtc2022-spring54318.2022.9860816