Zobrazeno 1 - 10
of 298
pro vyhledávání: '"de Carvalho, Elisabeth"'
Dynamic metasurface antennas (DMAs) arise as a promising technology in the field of massive multiple-input multiple-output (mMIMO) systems, offering the possibility of integrating a large number of antennas in a limited -- and potentially large -- ap
Externí odkaz:
http://arxiv.org/abs/2212.11594
This paper evaluates the performance of multi-user massive multiple-input multiple-output (MIMO) systems in which the base station is equipped with a dynamic metasurface antenna (DMA). Due to the physical implementation of DMAs, conventional models w
Externí odkaz:
http://arxiv.org/abs/2206.13245
Autor:
Vaca-Rubio, Cristian J., Pereira, Roberto, Mestre, Xavier, Gregoratti, David, Tan, Zheng-Hua, de Carvalho, Elisabeth, Popovski, Petar
Environmental scene reconstruction is of great interest for autonomous robotic applications, since an accurate representation of the environment is necessary to ensure safe interaction with robots. Equally important, it is also vital to ensure reliab
Externí odkaz:
http://arxiv.org/abs/2206.10750
Autor:
Pereira, Roberto, Deshpande, Anay Ajit, Vaca-Rubio, Cristian J., Mestre, Xavier, Zanella, Andrea, Gregoratti, David, de Carvalho, Elisabeth, Popovski, Petar
Hierarchical Rate Splitting (HRS) schemes proposed in recent years have shown to provide significant improvements in exploiting spatial diversity in wireless networks and provide high throughput for all users while minimising interference among them.
Externí odkaz:
http://arxiv.org/abs/2205.11373
Autor:
Vaca-Rubio, Cristian J., Salami, Dariush, Popovski, Petar, de Carvalho, Elisabeth, Tan, Zheng-Hua, Sigg, Stephan
Since electromagnetic signals are omnipresent, Radio Frequency (RF)-sensing has the potential to become a universal sensing mechanism with applications in localization, smart-home, retail, gesture recognition, intrusion detection, etc. Two emerging t
Externí odkaz:
http://arxiv.org/abs/2205.10321
Autor:
Rezaie, Sajad, Morais, João, de Carvalho, Elisabeth, Alkhateeb, Ahmed, Manchón, Carles Navarro
While initial beam alignment (BA) in millimeter-wave networks has been thoroughly investigated, most research assumes a simplified terminal model based on uniform linear/planar arrays with isotropic antennas. Devices with non-isotropic antenna elemen
Externí odkaz:
http://arxiv.org/abs/2203.11714
Autor:
Yuan, Jide, Alexandropoulos, George C., Kofidis, Eleftherios, Jensen, Tobias Lindstrm, De Carvalho, Elisabeth
The accurate estimation of Channel State Information (CSI) is of crucial importance for the successful operation of Multiple-Input Multiple-Output (MIMO) communication systems, especially in a Multi-User (MU) time-varying environment and when employi
Externí odkaz:
http://arxiv.org/abs/2202.08315
Autor:
Vaca-Rubio, Cristian J., Ramirez-Espinosa, Pablo, Kansanen, Kimmo, Tan, Zheng-Hua, de Carvalho, Elisabeth
This paper leverages the potential of Large Intelligent Surface (LIS) for radio sensing in 6G wireless networks. Major research has been undergone about its communication capabilities but it can be exploited as a formidable tool for radio sensing. By
Externí odkaz:
http://arxiv.org/abs/2111.02783
Autor:
Strinati, Emilio Calvanese, Alexandropoulos, George C., Wymeersch, Henk, Denis, Benoit, Sciancalepore, Vincenzo, D'Errico, Raffaele, Clemente, Antonio, Phan-Huy, Dinh-Thuy, De Carvalho, Elisabeth, Popovski, Petar
Various visions on the forthcoming sixth Generation (6G) networks point towards flexible connect-and-compute technologies to support future innovative services and the corresponding use cases. 6G should be capable to accommodate ever-evolving and het
Externí odkaz:
http://arxiv.org/abs/2110.07547
Position-aided beam selection methods have been shown to be an effective approach to achieve high beamforming gain while limiting the overhead and latency of initial access in millimeter wave (mmWave) communications. Most research in the area, howeve
Externí odkaz:
http://arxiv.org/abs/2110.06859