Zobrazeno 1 - 10
of 7 154
pro vyhledávání: '"Freitas JR"'
Autor:
Antonioli, Roberto P., Braga Jr., Iran M., Fodor, Gabor, Silva, Yuri C. B., Freitas Jr, Walter C.
Existing works on cell-free systems consider either coherent or non-coherent downlink data transmission and a network deployment with a single central processing unit (CPU). While it is known that coherent transmission outperforms noncoherent transmi
Externí odkaz:
http://arxiv.org/abs/2212.13950
Autor:
Saraiva, Juno V., Antonioli, Roberto P., Fodor, Gábor, Freitas Jr., Walter C., Silva, Yuri C. B.
This paper investigates cell-free massive multiple input multiple output systems with a particular focus on uplink power allocation. In these systems, uplink power control is highly non-trivial, since a single user terminal is associated with multipl
Externí odkaz:
http://arxiv.org/abs/2212.13804
Autor:
Braga Jr., Iran M., Antonioli, Roberto P., Fodor, Gabor, Silva, Yuri C. B., Freitas Jr, Walter C.
This paper investigates wireless-powered cell-free systems, in which the users send their uplink data signal while simultaneously harvesting energy from network nodes and user terminals - including the transmitting user terminal itself - by performin
Externí odkaz:
http://arxiv.org/abs/2212.13798
Autor:
Gabriel Dória Rachwal
Publikováno v:
Muitas Vozes. 8:34-38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85a79eda19983d9cc47096ebb1cc7ee9
https://doi.org/10.5212/muitasvozes.v.8i1.0004
https://doi.org/10.5212/muitasvozes.v.8i1.0004
Autor:
Villarroel, Beatriz, Solano, Enrique, Guergouri, Hichem, Streblyanska, Alina, Mattsson, Lars, Bär, Rudolf E., Mimouni, Jamal, Geier, Stefan, Gupta, Alok C., Okororie, Vanessa, Laggoune, Khaoula, Shultz, Matthew E., Freitas Jr., Robert A., Ward, Martin J.
Old, digitized astronomical images taken before the human spacefaring age offer a unique view of the sky devoid of known artificial satellites. In this paper, we have carried out the first optical searches ever for non-terrestrial artifacts near the
Externí odkaz:
http://arxiv.org/abs/2204.06091
Publikováno v:
Arquivos Brasileiros de Cardiologia, Vol 121, Iss 3 (2024)
Externí odkaz:
https://doaj.org/article/eeeaa1e03f2c42df98ca6b8495de4a5d
Autor:
Braga Jr., Iran M., Antonioli, Roberto P., Fodor, Gabor, Silva, Yuri C. B., Silva, Carlos F. M. e, Freitas Jr, Walter C.
Due to the continuous advancements of orthogonal frequency division multiplexing (OFDM) and multiple antenna techniques, multiuser multiple input multiple output (MU-MIMO) OFDM is a key enabler of both fourth and fifth generation networks. In this pa
Externí odkaz:
http://arxiv.org/abs/2103.15968
Autor:
Freitas Jr., Gerson (AUTHOR), Veloso, Tarso (AUTHOR)
Publikováno v:
Bloomberg.com. 7/8/2024, pN.PAG-N.PAG. 1p.
Autor:
Mastro, Michael A., Kim, Byung-Jae, Freitas, Jr., J. A., Caldwell, Joshua D., Rendell, Ron, Hite, Jennifer, Eddy, Jr., Charles R., Kim, Jihyun
Publikováno v:
Proceedings of SPIE - The International Society for Optical Engineering 8096 (2011)
Silver nanoparticles dispersed on the surface of an inverted GaN LED were found to plasmonically enhance the near-bandedge emission. The resonant surface plasmon coupling led to a significant enhancement in the exciton decay rate and the ensemble of
Externí odkaz:
http://arxiv.org/abs/2009.02141