Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Nguyen, Duy H."'
Autor:
Nguyen, Toan-Van, Nassirpour, Sajjad, Atzeni, Italo, Tolli, Antti, Swindlehurst, A. Lee, Nguyen, Duy H. N.
The spatial Sigma-Delta ($\Sigma\Delta$) architecture can be leveraged to reduce the quantization noise and enhance the effective resolution of few-bit analog-to-digital converters (ADCs) at certain spatial frequencies of interest. Utilizing the vari
Externí odkaz:
http://arxiv.org/abs/2410.03891
Autor:
Ha, Vu Nguyen, Nguyen, Duy H. N., Duncan, Juan C. -M., Gonzalez-Rios, Jorge L., Vasquez, Juan A., Eappen, Geoffrey, Garces-Socarras, Luis M., Palisetty, Rakesh, Chatzinotas, Symeon, Ottersten, Bjorn
This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital-Fourier-Transform-based (DFT) beamforming (BF) technique. R
Externí odkaz:
http://arxiv.org/abs/2403.08371
Publikováno v:
Eur. Phys. J. C 84, 729 (2024)
In this paper, we would like to examine whether stable de Sitter inflationary solutions appear within power-law extensions of the Starobinsky model. In particular, we will address general constraints for the existence along with the stability of de S
Externí odkaz:
http://arxiv.org/abs/2403.02623
Enabling communications in the (sub-)THz band will call for massive multiple-input multiple-output (MIMO) arrays at either the transmit- or receive-side, or at both. To scale down the complexity and power consumption when operating across massive fre
Externí odkaz:
http://arxiv.org/abs/2312.01777
Publikováno v:
Eur. Phys. J. C 84, 105 (2024)
In this paper, we investigate the validity of the so-called cosmic no-hair conjecture in the framework of anisotropic inflation models of non-canonical scalar fields non-minimally coupled to a two-form field. In particular, we focus on two typical {\
Externí odkaz:
http://arxiv.org/abs/2309.02690
In this paper, we would like to examine whether a novel Starobinsky-Bel-Robinson gravity model admits stable exponential inflationary solutions with or without spatial anisotropies. As a result, we are able to derive an exact de Sitter inflationary t
Externí odkaz:
http://arxiv.org/abs/2303.17283
Cell-free massive MIMO is a promising technology for beyond-5G networks. Through the deployment of many cooperating access points (AP), the technology can significantly enhance user coverage and spectral efficiency compared to traditional cellular sy
Externí odkaz:
http://arxiv.org/abs/2301.04260
Massive multiple-input multiple-output (MIMO) communications using low-resolution analog-to-digital converters (ADCs) is a promising technology for providing high spectral and energy efficiency with affordable hardware cost and power consumption. How
Externí odkaz:
http://arxiv.org/abs/2212.01717
Publikováno v:
Communications in Physics 33, 15 (2023)
In this paper, we would like to figure out whether a k-inflation model admits the Bianchi type I metric as its inflationary solution under a constant-roll condition in the presence of the supergravity motivated coupling between scalar and vector fiel
Externí odkaz:
http://arxiv.org/abs/2211.08032
Optimal data detection in massive multiple-input multiple-output (MIMO) systems requires prohibitive computational complexity. A variety of detection algorithms have been proposed in the literature, offering different trade-offs between complexity an
Externí odkaz:
http://arxiv.org/abs/2205.11649