Mostrando ítems 281-300 de 346
Shaat, Musbah M. R. (Fecha de defensa: 2012-03-09)
The ever-increasing growth of the wireless application and services affirms the importance of the effective usage of the limited radio spectrum. Existing spectrum management policies have led to significant spectrum ...
Rubio López, Javier (Fecha de defensa: 2016-06-22)
his dissertation proposes novel techniques for assigning resources of wireless networks by considering that the coverage radii are small, implying that some power consumption sinks not considered so far shouldnow be ...
Montero Herrera, Rafael (Fecha de defensa: 2020-07-23)
Upon the demanding requirements brought by next-generation services, current network infrastructures are required to evolve in the way they manage different types of resources at the data layer. To this end, a set of novel ...
Capdevila Cascante, Santiago (Fecha de defensa: 2013-02-15)
Many scientific, industrial and medical applications require the measurement of different physical parameters in order to collect information about the spatially distributed status of some process. Very often this information ...
Castro-Arvizu, Juan Manuel (Fecha de defensa: 2017-03-24)
Navigation and location technologies have been reaching in a major interest where Global Navigation Satellite System (GNSS) is mostly adopted. The limitation of this technology is that direct sky view is needed for reliable ...
Anguera Miró, Xavier (Fecha de defensa: 2006-12-21)
Aquesta tesi doctoral mostra la recerca feta en l'àrea de la diarització de locutor per a sales de reunions. En la present s'estudien els algorismes i la implementació d'un sistema en diferit de segmentació i aglomerat de ...
Villares Piera, Javier (Fecha de defensa: 2005-10-01)
En aquesta tesi s'estudia el problema d'estimació cega de segon ordre en comunicacions digitals. En aquest camp, els símbols transmesos esdevenen paràmetres no desitjats (nuisance parameters) d'estadística no gaussiana que ...
Mendoza Montoya, Jesús Fabián (Fecha de defensa: 2019-04-24)
The recent technological advances in the satellite domain such as the use of High Throughput Satellites (HTS) with throughput rates that are magnitudes higher than with previous ones, or the use of large non- Geostationary ...
Marchán Hernandez, Juan Fernando (Fecha de defensa: 2009-05-11)
El inminente lanzamiento de la misión Soil Moisture and Ocean Salinity (SMOS, humedad del terreno y salinidad del mar) de la Agencia Espacial Europea (ESA) permitirá la recuperación sistemática y a escala global de la ...
Sabia, Roberto (Fecha de defensa: 2008-10-13)
L’oceanografia per satèl•lit ha esdevingut una integració consolidada de les tècniques convencionals de monitorització in situ dels oceans. Un coneixement precís dels processos oceanogràfics i de la seva interacció és ...
Cardellach Galí, Estel (Fecha de defensa: 2002-03-07)
(English) The Global Navigation Satellite Systems (GNSS) are large, stable and calibratecl sets of spaceborne L-band microwave transmitters with very well characterized properties. They provide global and permanent coverage ...
Rius Casals, Juan Manuel (Fecha de defensa: 1991-07-08)
Este trabajo resuelve el problema de gran interés para la industria aeronáutica: el cálculo de la sección recta (RCS) de blancos radar complejos en tiempo real. Para ello basta una estación de trabajo con un acelerador ...
Moysen, Jessica (Fecha de defensa: 2016-10-07)
Nowadays, the rapid growth of mobile communications is changing the world towards a fully connected society. Current 4G networks account for almost half of total mobile traffic, and in the forthcoming years, the overall ...
Mijumbi, Rashid (Fecha de defensa: 2014-11-06)
Network virtualisation is a promising technique for dealing with the resistance of the Internet to architectural changes, enabling a novel business model in which infrastructure management is decoupled from service ...
Khan, Umair (Fecha de defensa: 2021-01-11)
In speaker recognition, i-vectors have been the state-of-the-art unsupervised technique over the last few years, whereas x-vectors is becoming the state-of-the-art supervised technique, these days. Recent advances in Deep ...
Lin, Xiao (Fecha de defensa: 2018-07-20)
In this thesis, we study RGB-D based segmentation problems from different perspectives in terms of the input data. Apart from the basic photometric and geometric information contained in the RGB-D data, also semantic and ...
Sarrigiannis, Ioannis (Fecha de defensa: 2023-02-10)
(English) The fifth generation (5G) of mobile communications urges software defined networking (SDN) and network function virtualization (NFV) to join forces with the multi-access edge computing (MEC) cause. Thus, reduced ...
Serra Puertas, Jorge (Fecha de defensa: 2016-11-11)
We are living in a data deluge era where the dimensionality of the data gathered by inexpensive sensors is growing at a fast pace, whereas the availability of independent samples of the observed data is limited. Thus, ...
Yam Ontiveros, Luis Eduardo (Fecha de defensa: 2016-09-21)
Over the last decades, environmental and socio-economic factors have generated interest on the observation of the ocean. Thus, the monitoring of maritime human activity has become crucial for the protection of the marine ...
García Vizcaino, David (Fecha de defensa: 2005-06-29)
La utilización práctica del efecto Doppler en la emisión láser fue propuesta desde los inicios del desarrollo de los láseres en los años sesenta. Sólo en los años ochenta la investigación realizada pudo salir del laboratorio ...