Results 11 to 20 of about 262,916 (253)
Hydrometeor classification from two-dimensional video disdrometer data [PDF]
Atmospheric Measurement Techniques, 2014 The first hydrometeor classification technique based on two-dimensional video disdrometer (2DVD) data is presented. The method provides an estimate of the dominant hydrometeor type falling over time intervals of 60 s during precipitation, using ...
J. Grazioli +5 more
doaj +1 more source
Solid hydrometeor classification and riming degree estimation from pictures collected with a Multi-Angle Snowflake Camera [PDF]
Atmospheric Measurement Techniques, 2017 A new method to automatically classify solid hydrometeors based on Multi-Angle Snowflake Camera (MASC) images is presented. For each individual image, the method relies on the calculation of a set of geometric and texture-based descriptors to ...
C. Praz, Y.-A. Roulet, A. Berne
doaj +1 more source
RainForest: a random forest algorithm for quantitative precipitation estimation over Switzerland [PDF]
Atmospheric Measurement Techniques, 2021 Quantitative precipitation estimation (QPE) is a difficult task, particularly in complex topography, and requires the adjustment of empirical relations between radar observables and precipitation quantities, as well as methods to transform observations ...
D. Wolfensberger +5 more
doaj +1 more source
Base Station Power Optimization for Green Networks Using Reinforcement Learning
Sakarya University Journal of Computer and Information Sciences, 2021 The next generation mobile networks have to provide high data rates, extremely low latency, and support high connection density. To meet these requirements, the number of base stations will have to increase and this increase will lead to an energy ...
Hande Alemdar, Semih Aktaş
doaj +1 more source
Formal verification of LTE-UMTS and LTE–LTE handover procedures [PDF]
Computer Standards & Interfaces, 2017 Long Term Evolution (LTE) is the most recent standard in mobile communications, introduced by 3rd Generation Partnership Project (3GPP). Most of the works in literature about LTE security analyze authentication procedures, while handover procedures are far less considered.
BETTASSA COPET, PIERGIUSEPPE +3 more
openaire +2 more sources
Hydrometeor classification from polarimetric radar measurements: a clustering approach [PDF]
Atmospheric Measurement Techniques, 2015 A data-driven approach to the classification of hydrometeors from measurements collected with polarimetric weather radars is proposed. In a first step, the optimal number of hydrometeor classes (nopt) that can be reliably identified from a large ...
J. Grazioli, D. Tuia, A. Berne
doaj +1 more source
MIMO Detector for LTE/LTE-A Uplink Receiver [PDF]
Journal of Signal Processing Systems, 2018 We propose a carefully selected receiver structure, detector and detector implementation architecture for multiple-input multiple-output (MIMO) uplink base station receiver for fourth generation (4G) wireless cellular systems. First, we compare different receiver algorithms and structures for single-carrier frequency-division multiple access (SC-FDMA ...
Tuomo Hänninen +2 more
openaire +2 more sources
Design and implementation of MIMO-long term evolution-advanced to support larger bandwidth [PDF]
, 2013 The migration of mobile communication technologies are divided into four generations. Long Term Evolution (LTE) is called LTE rel-8, the evolution of LTE led to new technology referred to as LTE-Advanced, is the true fourth generation (4G) evolution
Alashqer, Aws Zuheer Yonis
core +1 more source
Multifractal evaluation of simulated precipitation intensities from the COSMO NWP model [PDF]
Atmospheric Chemistry and Physics, 2017 The framework of universal multifractals (UM) characterizes the spatio-temporal variability in geophysical data over a wide range of scales with only a limited number of scale-invariant parameters.
D. Wolfensberger +4 more
doaj +1 more source
Maskay, 2023 El presente artículo ofrece un análisis comparativo de los modelos de propagación Hata Extendido, SUI con factor de corrección de frecuencia y Ericsson 9999, en los sistemas de telefonía móvil que operan en la banda de 1900 MHz (LTE) a través de ...
Anthonny Flores Nuñez +3 more
doaj +1 more source