no code implementations • 18 Dec 2023 • Giulia Torcolacci, Anna Guerra, Haiyang Zhang, Francesco Guidi, Qianyu Yang, Yonina C. Eldar, Davide Dardari
This paper addresses a near-field imaging problem utilizing extremely large-scale multiple-input multiple-output (XL-MIMO) antennas and reconfigurable intelligent surfaces (RISs) already in place for wireless communications.
no code implementations • 10 Oct 2023 • Ahmed Elzanaty, Jiuyu Liu, Anna Guerra, Francesco Guidi, Yi Ma, Rahim Tafazolli
The upcoming 6G technology is expected to operate in near-field (NF) radiating conditions thanks to high-frequency and electrically large antenna arrays.
no code implementations • 23 Dec 2022 • Marina Lotti, Gianni Pasolini, Anna Guerra, Francesco Guidi, Raffaele D'Errico, Davide Dardari
Next-generation wireless networks will see the convergence of communication and sensing, also exploiting the availability of large bandwidths in the Terahertz (THz) spectrum and electrically large antenna arrays on handheld devices.
no code implementations • 28 Oct 2022 • Qianyu Yang, Anna Guerra, Francesco Guidi, Nir Shlezinger, Haiyang Zhang, Davide Dardari, Baoyun Wang, Yonina C. Eldar
We use a direct positioning estimation method based on curvature-of-arrival of the impinging wavefront to obtain the user location, and characterize the effects of DMA tuning on the estimation accuracy.
no code implementations • 24 Mar 2022 • Haiyang Zhang, Nir Shlezinger, Francesco Guidi, Davide Dardari, Yonina C. Eldar
As a consequence, it is expected that some portion of future 6G wireless communications may take place in the radiating near-field (Fresnel) region, in addition to the far-field operation as in current wireless technologies.
no code implementations • 10 Oct 2021 • Haiyang Zhang, Nir Shlezinger, Francesco Guidi, Davide Dardari, Mohammadreza F Imani, Yonina C Eldar
Radio frequency wireless power transfer (WPT) enables charging low-power mobile devices without relying on wired infrastructure.
no code implementations • 17 Aug 2021 • Haiyang Zhang, Nir Shlezinger, Francesco Guidi, Davide Dardari, Mohammadreza F. Imani, Yonina C. Eldar
Radiating wireless power transfer (WPT) brings forth the possibility to cost-efficiently charge wireless devices without requiring a wiring infrastructure.
no code implementations • 27 May 2021 • Haiyang Zhang, Nir Shlezinger, Francesco Guidi, Davide Dardari, Mohammadreza F. Imani, Yonina C. Eldar
As the ability to achieve beam focusing is dictated by the transmit antenna, we study near-field signaling considering different antenna structures, including fully-digital architectures, hybrid phase shifter-based precoders, and the emerging dynamic metasurface antenna (DMA) architecture for massive MIMO arrays.
no code implementations • 11 Feb 2021 • Anna Guerra, Francesco Guidi, Davide Dardari, Petar M. Djuric
In this paper, we study a near-field tracking problem for inferring the state (i. e., the position and velocity) of a moving source with an ad-hoc observation model that accounts for the phase profile of a large receiving array.
Information Theory Systems and Control Systems and Control Information Theory
no code implementations • 5 May 2020 • Anna Guerra, Francesco Guidi, Davide Dardari, Petar M. Djuric
In this paper, we study a joint detection, mapping and navigation problem for a single unmanned aerial vehicle (UAV) equipped with a low complexity radar and flying in an unknown environment.
no code implementations • 31 Dec 2019 • Francesco Guidi, Davide Dardari
Next 5G and beyond applications have brought a tremendous interest towards array systems employing an extremely large number of antennas, so that the technology that might be in place for communication can be also exploited for positioning.