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Contribution to radio resource and spectrum management strategies in wireless access networks: a markov modeling approach
Las redes inal´ambricas actuales exhiben caracter´ısticas heterog´eneas de acceso m´ultiple mediante el despliegue, la coexistencia y la cooperaci´on de varias Tecnolog ´ıas de Acceso Radio (RAT2). En este escenario, la ...
Contribution to reliable control of dynamic systems
This thesis presents sorne contributions to the field of Health-Aware Control (HAC) of dynamic systems. In the first part of this thesis, a review of the concepts and methodologies related to reliability versus degradation ...
Contribution to reliable end-to-end communication over 5G networks using advanced techniques
5G cellular communication, especially with its hugely available bandwidth provided by millimeter-wave, is a promising technology to fulfill the coming high demand for vast data rates. These networks can support new use ...
Contribution to resource management in cellular access networks with limited backhaul capacity
La interfaz radio de los sistemas de comunicaciones móviles es normalmente considerada como la única limitación de capacidad en la red de acceso radio. Sin embargo, a medida que se van desplegando nuevas y más eficientes ...
Contribution to spatial bias mitigation in interferometric radiometers devoted to Earth observation : application to the SMOS mission
This work has been undertaken within the frame of the FPI scholarship BES-2009-028505 of 30/07/2009, by the "Secretario de Estado de Investigación del Ministerio de Ciencia e Innovación", related to the project ...
Contribution to spectrum management in cognitive radio networks: a cognitive management framework
To overcome the current under-utilization of spectrum resources, the CR (Cognitive Radio) paradigm has gained an increasing interest to perform the so-called Dynamic Spectrum Access (DSA). In this respect, Cognitive Radio ...
Contribution to structural parameters computation: volume models and methods
Bio-CAD and in-silico experimentation are getting a growing interest in biomedical applications where scientific data coming from real samples are used to compute structural parameters that allow to evaluate physical ...
A contribution to support decision making in energy/water sypply chain optimisation
The seeking of process sustainability forces enterprises to change their operations. Additionally, the industrial globalization implies a very dynamic market that, among other issues, promotes the enterprises competition. ...
Contribution to the advanced analysis and prevention of the mechanisms of natural fire induced structural collapse in highrise buldings
El progresivo incremento de la altura de los Edificios de Gran Altura (EGA) ha aumentado las consecuencias reales y potenciales cuando irrumpen en ellos incendios naturales. A la vista de dichas pérdidas, el objeto principal ...
Contribution to the architecture and implementation of Bi-NoC routers for multi-synchronous GALS systems
Networks-on-Chip (NoC) is an emerging on-chip interconnection centric platform that influences the modern high speed communication infrastructure to improve on-chip communication challenges in the recent many core ...
Contribution to the assessment of shelter-in-place effectiveness as a community protection measure in the event of a toxic gas release
En les darreres dècades el nombre d'accidents ocurreguts en la industria química i durant el transport de mercaderies perilloses ha augmentat substancialment, registrant-se en la seva majoria en zones densament poblades. ...
Contribution to the assessment of the efficiency of friction dissipators for seismic protection of buildings
Esta Tesis trata de la simulación numérica y experimental de estructuras de edificios equipadas con disipadores de energía de fricción, sujetos a cargas de sismo. La Tesis pretende contribuir a la evaluación de la eficacia ...
Contribution to the center and integrability problems in planar vector fields
Aquesta tesi consta d'un primer capítol introductori, set capítols amb diferents resultats i una bibliografia. El primer capítol conté la definició i els resultats previs necessaris per abordar la resta de la memòria. ...
Contribution to the characterization of interferometric radiometers devoted to Earth observation: application to the MIRAS/SMOS payload
The variability of soil moisture and ocean salinity controls the continuous exchange of water between the oceans, the atmosphere and the land. Therefore, the accurate and periodic measurements of these geophysical variables ...
Contribution to the construction of fingerprinting and watermarking schemes to protect mobile agents and multimedia content
The main characteristic of fingerprinting codes is the need of high error-correction capacity due to the fact that they are designed to avoid collusion attacks which will damage many symbols from the codewords. Moreover, ...
Contribution to the design of VANET routing protocols for realistic urban environments
One of the main concerns of the cities' administration is mobility management. In Intelligent Transportation Systems (ITS), pedestrians, vehicles and public transportation systems could share information and react to any ...
Contribution to the development of autonomous satellite communications networks : the internet of satellites
The space is experiencing a revolution due to the em ergence of satellite services to satisfy environmental, socio-econom ic, and geo-political demands. Earth Observation satellite systems have become dependable resources ...
Contribution to the development of efficient algorithms for solving complex single-objective and multi-objective optimization models
L’optimització en enginyeria de processos és un àrea molt estesa que ha anat evolucionant al llarg del temps i ha passat de ser una metodologia d'interès purament acadèmic a una tecnologia que té, i que contínua tenint, ...
Contribution to the development of hydrometallurgical separation and concentration techniques focused on precious metals recovery
Aquesta Tesi Doctoral es centra en la recuperació de metalls precisos presents en dissolucions d'àcid clorhñidric, per mitjà de tècnqiues tant emergents com ben establertes basades en els principis de la tecnologia d'extracció ...
Contribution to the development of mathematical programming tools to assist decision-making in sustainability problems
L'activitat humana està excedint la capacitat de resposta de la Terra, el que pot tenir implicacions perjudicials per al futur benestar humà i del medi ambient. Sens dubte, severs canvis estructurals seran necessaris, el ...
