Browsing Departament de Teoria del Senyal i Comunicacions by Title

Spatial modulation schemes and modem architectures for millimeter wave radio systems

Raafat, Ahmed (Date of defense: 2020-07-22)

The rapid growth of wireless industry opens the door to several use cases such as internet of things and device-to-device communications, which require boosting the reliability and the spectral efficiency of the wireless ...

Speaker diarization and tracking in multiple-sensor environments

Luque Serrano, Jordi (Date of defense: 2012-12-21)

This thesis verses about the research conducted in the topic of speaker recognition in real conditions like as meeting rooms, telephone quality speech and radio and TV broadcast news. The main objective is concerned to the ...

Spectrum usage models for the analysis, design and simulation of cognitive radio networks

López Benítez, Miguel (Date of defense: 2011-07-20)

The owned spectrum allocation policy, in use since the early days of modern radio communications, has been proven to effectively control interference among radio communication systems. However, the overwhelming proliferation ...

Sports broadcasting and multiple object tracking with deep learning methods

Girbau Xalabarder, Andreu (Date of defense: 2021-03-17)

Since less than a decade ago, deep learning techniques started to dominate many different fields, revolutionizing the possibilities of artificial intelligence. Seeing their potential, industrial sectors started to invest ...

Stochastic optimization and interactive machine learning for human motion analysis

Alcoverro Vidal, Marcel (Date of defense: 2014-12-17)

The analysis of human motion from visual data is a central issue in the computer vision research community as it enables a wide range of applications and it still remains a challenging problem when dealing with unconstrained ...

Study and application of spectral monitoring techniques for optical network optimization

Locatelli, Fabiano (Date of defense: 2021-11-18)

One of the possible ways to address the constantly increasing amount of heterogeneous and variable internet traffic is the evolution of the current optical networks towards a more flexible, open, and disaggregated paradigm. ...

Study of early stages of Alzheimer's disease using magnetic resonance imaging

Casamitjana Díaz, Adrià (Date of defense: 2019-12-20)

Alzheimer's disease (AD) is a neurodegenerative disorder that constitutes the most common dementia pathology. It represents a global epidemic that expands exponentially as the life expectancy increases with no yet useful ...

Study of gene regulatory networks inference methods from gene expression data

Bellot Pujalte, Pau (Date of defense: 2017-05-08)

A cell is a the basic structural and functional unit of every living thing, it is protein-based an that regulates itself. The cell eats to stay alive, it grows and develops; reacting to the environment, while subjected to ...

Subset selection in signal processing using sparsity-inducing norms

Blanco Botana, Luis (Date of defense: 2017-07-22)

This dissertation deals with different subset selection problems in wireless communications systems. These type of problems have a combinatorial nature, which makes them computationally intractable for medium and large-scale ...

Surface reconstruction for multi-view video

Salvador Marcos, Jordi (Date of defense: 2011-09-23)

This thesis introduces a methodology for obtaining an alternative representation of video sequences captured by calibrated multi-camera systems in controlled environments with known scene background. This representation ...

Synergistic optical and microwave remote sensing approaches for soil moisture mapping at high resolution

Portal González, Gerard (Date of defense: 2022-05-27)

Soil moisture is an essential climate variable that plays a crucial role linking the Earth’s water, energy, and carbon cycles. It is responsible for the water exchange between the Earth’s surface and the atmosphere, and ...

Synthesis and design of dissipative filters with improved performance

Padilla Díaz, Alberto (Date of defense: 2015-11-11)

Connect, upload, download, share and transfer anything at anytime and anywhere is not a futuristic vision and is indeed a real demand on current and future wireless and fixed communication systems. From the point of view ...

Synthesis of acoustic wave filters : ladder and transversal topologies : towards a practical implementation

Hueltes Escobar, Alberto (Date of defense: 2021-02-05)

The meteoric growth of the mobile communication market for the last three decades has been strongly related with the evolution of the electroacoustic (EA) filter technology. With way over 5 billion cell phone users worldwide ...

Technologies for injection molded antennas for mass production

Zhou, Ivan (Date of defense: 2023-01-19)

(English) The deployment of 5G antenna infrastructure and the mandatory adoption of anti-collision radars for automotive cars will require large amount of antennas operating in the millimeter and sub-millimeter wavelength. ...

Terahertz integrated antenna arrays for imaging applications

Alonso del Pino, María (Date of defense: 2013-10-25)

Terahertz is the portion of the spectrum that covers a frequency range between 300 GHz - 3 THz. This frequency band has proven its potential for imaging applications thanks to the good compromise between spatial resolution ...

Texture analysis and physical interpretation of polarimetric SAR data

Deng, Xinping (Date of defense: 2016-07-26)

This thesis is dedicated to the study of texture analysis and physical interpretation of PolSAR data. As the starting point, a complete survey of the statistical models for PolSAR data is conducted. All the models are ...

Técnicas de acceso y gestión de recursos para garantizar calidad de servicio en sistemas de comunicaciones moviles basados en CDMA

Alonso Zárate, Luis Gonzaga (Date of defense: 2001-05-02)

En la presente tesis doctoral se ha realizado una serie de aportaciones para contribuir al desarrollo de los sistemas de comunicaciones móviles de tercera generación. Esta nueva generación de sistemas utilizará una técnica ...