Zobrazeno 1 - 10
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pro vyhledávání: '"Los P"'
Publikováno v:
IEEE Wireless Communications Letters, vol. 11, no. 1, pp. 121-125, Jan. 2022
Designers of millimeter wave (mmWave) cellular systems need to evaluate line-of-sight (LOS) maps to provide good service to users in urban scenarios. In this letter, we derive estimators to obtain LOS maps in scenarios with potential blocking element
Externí odkaz:
http://arxiv.org/abs/2411.07193
Autor:
Wu, Yibo, Sanguinetti, Luca, Keskin, Musa Furkan, Gustavsson, Ulf, Amat, Alexandre Graell i, Wymeersch, Henk
Cell-free massive multiple-input multiple-output (mMIMO) networks enhance coverage and spectral efficiency (SE) by distributing antennas across access points (APs) with phase coherence between APs. However, the use of cost-efficient local oscillators
Externí odkaz:
http://arxiv.org/abs/2410.18722
Autor:
Lee, Jeongjae, Hong, Songnam
We study the channel estimation problem for a reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) system. In particular, it is assumed that the channel between a RIS and a bas
Externí odkaz:
http://arxiv.org/abs/2410.13806
Autor:
Minutti-Martinez, Carlos
This paper explores the practical approach to portfolio selection methods for investments. The study delves into portfolio theory, discussing concepts such as expected return, variance, asset correlation, and opportunity sets. It also presents the ef
Externí odkaz:
http://arxiv.org/abs/2410.11070
Publikováno v:
IEEE Transactions on Vehicular Technology, Volume: 69, Issue: 12, December 2020, pages: 16247 - 16252
In the millimeter waves (mmWave) bands considered for 5G and beyond, the use of very high frequencies results in the interruption of communication whenever there is no line of sight between the transmitter and the receiver. Blockages have been modele
Externí odkaz:
http://arxiv.org/abs/2412.00442
Freight truck-related crashes pose significant challenges, leading to substantial economic losses, injuries, and fatalities, with pronounced spatial disparities across different regions. This study adopts a transport geography perspective to examine
Externí odkaz:
http://arxiv.org/abs/2411.17554
Autor:
Sechrest, Yancey, Vance, Marion, Ward, Christian, Priedhorsky, William, Hill, Robert, Vestrand, W Thomas, Wozniak, Przemyslaw
Surveillance of objects in the cislunar domain is challenging due primarily to the large distances (10x the Geosynchronous orbit radius) and total volume of space to be covered. Ground-based electro-optical observations are further hindered by high b
Externí odkaz:
http://arxiv.org/abs/2412.03339
Autor:
Mieras, Margarita Miguelina, Tobares, Tania Daiana, Palma, Ricardo Raúl, Ramirez-Pastor, Antonio José, Varretti, Fabricio Orlando Sanchez
This research presents the development of a new simulation model to determine the optimal order lot sizes in Material Requirements Planning, based on purchase volume and the temporal deterioration of items. The scientific novelty lies in the exhausti
Externí odkaz:
http://arxiv.org/abs/2412.02714
Autor:
Cantarero, José
This article contains a basic introduction to the local study of finite groups, including a brief perspective on the theory of fusion systems and $p$-local finite groups. -- Este art\'iculo contiene una introducci\'on b\'asica al estudio local de gru
Externí odkaz:
http://arxiv.org/abs/2411.06005