no code implementations • 30 Jan 2024 • Philipp Singer, Pascal Pfeiffer, Yauhen Babakhin, Maximilian Jeblick, Nischay Dhankhar, Gabor Fodor, Sri Satish Ambati
We present H2O-Danube, a series of small 1. 8B language models consisting of H2O-Danube-1. 8B, trained on 1T tokens, and the incremental improved H2O-Danube2-1. 8B trained on an additional 2T tokens.
no code implementations • 24 Jan 2024 • Sajad Daei, Gabor Fodor, Mikael Skoglund, Miklos Telek
In particular, when the channel changes rapidly in time, channel aging degrades the performance in terms of spectral efficiency without proper pilot spacing and power control.
1 code implementation • 27 Aug 2023 • Oscar Stenhammar, Gabor Fodor, Carlo Fischione
The performance of modern wireless communications systems depends critically on the quality of the available channel state information (CSI) at the transmitter and receiver.
1 code implementation • 10 Jul 2023 • Gabor Fodor, Marcos V. Conde
Our method successfully achieves high-precision deforestation estimation and burned area detection on unseen images from the region.
no code implementations • 21 Jun 2023 • Kenneth B. A. Benício, André L. F. de Almeida, Bruno Sokal, Fazal-E-Asim, Behrooz Makki, Gabor Fodor
This paper proposes a tensor-based parametric modeling and estimation framework in multiple-input multiple-output (MIMO) systems assisted by intelligent reflecting surfaces (IRSs).
no code implementations • 21 Jun 2023 • Sajad Daei, Saeed Razavikia, Marios Kountouris, Mikael Skoglund, Gabor Fodor, Carlo Fischione
Resource allocation and multiple access schemes are instrumental for the success of communication networks, which facilitate seamless wireless connectivity among a growing population of uncoordinated and non-synchronized users.
no code implementations • 24 May 2023 • Yuri S. Ribeiro, Fazal E-Asim, André L. F de Almeida, Behrooz Makki, Gabor Fodor
In this letter, we consider an intelligent reflecting surface (IRS)-assisted multiple input multiple output (MIMO) communication and we optimize the joint active and passive beamforming by exploiting the geometrical structure of the propagation channels.
no code implementations • 28 Dec 2022 • Iran M. Braga Jr., Roberto P. Antonioli, Gabor Fodor, Yuri C. B. Silva, Walter C. Freitas Jr
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 performing self-energy recycling.
no code implementations • 8 Nov 2022 • Shashi Kant, José Mairton B. da Silva Jr., Gabor Fodor, Bo Göransson, Mats Bengtsson, Carlo Fischione
We propose FedTOP-ADMM, which generalizes FedADMM and is based on a three-operator ADMM-type technique that exploits a smooth cost function on the edge server to learn a global model parallel to the edge devices.
no code implementations • 10 Jun 2022 • Bruno Sokal, Paulo R. B. Gomes, André L. F. de Almeida, Behrooz Makki, Gabor Fodor
We show that the proposed low-rank models drastically reduce the required feedback requirements associated with the BS-IRS control links.
no code implementations • 25 May 2022 • Shashi Kant, Mats Bengtsson, Gabor Fodor, Bo Göransson, Carlo Fischione
Although signal distortion-based peak-to-average power ratio (PAPR) reduction is a feasible candidate for orthogonal frequency division multiplexing (OFDM) to meet standard/regulatory requirements, the error vector magnitude (EVM) stemming from the PAPR reduction has a deleterious impact on the performance of high data-rate achieving multiple-input multiple-output (MIMO) systems.
no code implementations • 24 May 2022 • Bruno Sokal, Paulo R. B. Gomes, André L. F. de Almeida, Behrooz Makki, Gabor Fodor
In this paper, we propose a rank-one tensor modeling approach that yields a compact representation of the optimum IRS phase-shift vector for reducing the feedback overhead.
no code implementations • 29 Mar 2021 • Iran M. Braga Jr., Roberto P. Antonioli, Gabor Fodor, Yuri C. B. Silva, Carlos F. M. e Silva, Walter C. Freitas Jr
This problem is motivated by the observation that multicell MU-MIMO OFDM systems serve multiple quality of service classes and the system performance depends critically on both the transceiver design and the scheduling algorithm.
no code implementations • 23 Feb 2021 • Roberto P. Antonioli, Gabor Fodor, Pablo Soldati, Tarcisio F. Maciel
Fifth generation cellular systems support a broad range of services, including mobile broadband, critical and massive Internet of Things and are used in a variety of scenarios.
no code implementations • 25 Sep 2020 • Shashi Kant, Mats Bengtsson, Gabor Fodor, Bo Göransson, Carlo Fischione
In this paper we propose a novel spectral precoding approach which constrains the EVM while complying with the mask requirements.
no code implementations • 19 Mar 2020 • Hossein S. Ghadikolaei, Hadi Ghauch, Gabor Fodor, Mikael Skoglund, Carlo Fischione
Inter-operator spectrum sharing in millimeter-wave bands has the potential of substantially increasing the spectrum utilization and providing a larger bandwidth to individual user equipment at the expense of increasing inter-operator interference.