Antonopoulos, Angelos (Date of defense: 2012-12-17)
The introduction of third generation (3G) technologies has caused a vast proliferation of wireless devices and networks, generating an increasing demand for high level Quality of Service (QoS). The wide ...
Gispert Ramis, Adrià (Date of defense: 2007-01-26)
Aquesta tesi està dedicada a l'estudi de la utilització de informació morfosintàctica en el marc dels sistemes de traducció estocàstica, amb l'objectiu de millorar-ne la qualitat a través de la incorporació ...
Ntontin, Konstantinos (Date of defense: 2015-11-03)
As the data rate demands of the cellular users increase, together with their number, it is expected that unprecedented capacity demands should be met in wireless networks in the forthcoming years. ...
Tsitsimelis, Achilleas (Date of defense: 2020-10-14)
Since their inception, more than one century ago, electrical grids have played the role of a critical infrastructure. During the majority of this time, power systems have not faced radical changes. In ...
López Pastor, Eduardo Tommy (Date of defense: 2013-09-12)
This Thesis proposes the design and the optimization of a hybrid WDM/TDM PON at the L1 (PHY) and L2 (MAC) layers, in terms of minimum deployment cost and enhanced performance for Greenfield NGPON. The ...
Villares Piera, Javier (Date of defense: 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 ...
Bousia, Alexandra (Date of defense: 2016-02-18)
The rapid expansion of mobile services and the emerging demand for multimedia applications have led to an impressive traffic growth. To this end, Mobile Network Operators (MNOs) seek to extend their ...
Niotaki, Kyriaki (Date of defense: 2014-12-15)
In the future communication systems, it is of key importance that the transceivers are capable of operating in multiple frequency bands and with complex signals. In this context, the power amplifier is ...
Bouali, Faouzi (Date of defense: 2013-09-06)
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 ...
Moragrega Estrany, Anna (Date of defense: 2016-02-04)
In Wireless Sensor Networks (WSN), the ability of sensor nodes to know its position is an enabler for a wide variety of applications for monitoring, control, and automation. Often, sensor data is ...