Programa de Doctorat en Enginyeria Telemàtica: Envíos recientes
Mostrando ítems 81-100 de 111
Study, evaluation and contributions to new algorithms for the embedding problem in a network virtualization environment
Network virtualization is recognized as an enabling technology for the future Internet. It aims to overcome the resistance of the current Internet to architectural change and to enable a new business model decoupling the ...
Contribution to design a communication framework for vehicular ad hoc networks in urban scenarios
The constant mobility of people, the growing need to be always connected, the large number of vehicles that nowadays can be found in the roads and the advances in technology make Vehicular Ad hoc Networks (VANETs) be a ...
Contributions based on cross-layer design for quality-of-service provisioning over DVB-S2/RCS broadband satellite system
Contributions based on cross-layer design for Quality-of-Service provisioning over DVB-S2/RCS Broadband Satellite Systems Nowadays, geostationary (GEO) satellite infrastructure plays a crucial role for the provisioning of ...
Contributions to security and privacy protection in recommendation systems
A recommender system is an automatic system that, given a customer model and a set of available documents, is able to select and offer those documents that are more interesting to the customer. From the point of view of ...
Security in peer-to-peer communication systems
P2PSIP (Peer-to-Peer Session Initiation Protocol) is a protocol developed by the IETF (Internet Engineering Task Force) for the establishment, completion and modi¿cation of communication sessions that emerges as a complement ...
Design of secure mobile payment protocols for restricted connectivity scenarios
The emergence of mobile and wireless networks made posible the extensión of electronic commerce to a new area of research: mobile commerce called m-commerce, which includes mobile payment), that refers to any e-commerce ...
Contributions to the future media internet using service-oriented architectures
Nowadays, video streaming applications are the most bandwidth-hungry applications and this tendency is envisaged to grow exponentially. With the proliferation of multimedia capable devices, multimedia services have to ...
Admission control in mobile cellular networks: design, performance evaluation and analysis
Key to the success of the mobile telecommunication systems is provision of mobility and more specifically, continuity of communication sessions on the move. However, from engineering point of view the cobination of scarce ...
Seguridad en redes de computación ubicua: contribución a la validación de credenciales
Technology progress in both user devices and networks allows communications anytime and anywhere. New communication environments offer a wide range of possibilities to users, but also generate new threats. For this reason, ...
Contributions to TOA-based location with wlan
Location techniques that satisfy the requirements of advanced Location-Based Services (LBS) in environments where GPS fails are needed, therefore accurate indoor positioning is becoming increasingly important. This PhD ...
Architectures and protocols for sub-wavelength optical networks: contributions to connectionless and connection-oriented data transport
La ràpida evolució d’Internet i l’àmplia gamma de noves aplicacions (per exemple, multimèdia, videoconferència, jocs en línia, etc.) ha fomentat canvis revolucionaris en la manera com ens comuniquem. A més, algunes d’aquestes ...
Resource optimization in passive optical networks: dynamic bandwidth Allocation, Evolution, and Cost-Effective Capacity Upgrades
This thesis is a result of contributions to optimize or improve resource allocation in Passive Optical Networks (PON). The contributions are related with resource allocation during PON operation and with the upgrade process ...
Toward All-IP networks : IP and wireless networks convergence
In this thesis the state of the art for IP networks and the two most predominant wireless access networks, UMTS and Wireless LANs, has been reviewed with respect to the enhancements required toward the objective of supporting ...
Contribución a la transmisión de vídeo en redes IP con calidad de servicio
Hoy en día, entre los servicios más solicitados por los usuarios en las redes de comunicaciones, se encuentran aquellos que incorporan información multimedia. En Internet, es habitual que un gran número de páginas web ...
Self-optimization of Radio Resources on IEEE 802.11 Networks
Les xarxes d'àrea local sense fils (WLANs), principalment les basades en les diverses versions de les normes IEEE 802.11, i més concretament, aquelles operant en mode infraestructura (ús de punts d'accés o APs), són avui ...
Seguridad en los procesos de voto electrónico remoto: registro, votación, consolidación de resultados y auditoria
En los últimos años se han estado utilizando medios electrónicos para automatizar y hacer más eficientes los diferentes procesos de una elección. Aún cuando esta automatización se ha presentado de manera gradual, el propósito ...
Contribución al soporte de Calidad del Servicio en Redes Móviles
En esta Tesis se plantea una solución para soportar Calidad de Servicio en Internet. Esta solución, denominada IntServ6, opera sobre redes fijas y móviles basadas en el protocolo IPv6. IntServ6 está fundamentada en la ...
Contribución al estudio de mejora de prestaciones del protocolo TCP en diferentes entornos
Internet, la mayor red de ordenadores del mundo, formada por millones de terminales repartidos por todo el planeta, está basada en la arquitectura de protocolos TCP/IP, cuyas aplicaciones más utilizadas son, sin duda, el ...
Contribución a la validación de certificados en arquitecturas de autenticación y autorización
Authentication and authorisation architectures based on certificates have not been widely accepted due to their cost, inflexibility and difficult management.<br/>The complexity of the Public Key Infrastructure (PKI) is ...
Control de congestión multipunto en redes IP y ATM. Diseño de protocolos de transporte multipunto fiable
Las comunicaciones multipunto ofrecen, tanto a usuarios como a proveedores, mayor eficiencia, permitiendo desarrollar e implantar nuevos servicios. Para poder desplegarlos adecuadamente sobre la redes de comunicaciones, ...
