Mostrando ítems 21-30 de 272
López Pastor, Eduardo Tommy (Fecha de defensa: 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 (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 ...
Bousia, Alexandra (Fecha de defensa: 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 (Fecha de defensa: 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 (Fecha de defensa: 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 (Fecha de defensa: 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 ...
Temko, Andriy (Fecha de defensa: 2007-01-23)
L'activitat humana que té lloc en sales de reunions o aules d'ensenyament es veu reflectida en una rica varietat d'events acústics, ja siguin produïts pel cos humà o per objectes que les persones manegen. ...
Kumar, Dhiraj (Fecha de defensa: 2012-07-16)
The increasing need for range-resolved aerosol and water-vapour atmospheric observation networks worldwide has given rise to multi-spectral LIDARs (Light Detection and Ranging, a synonym of laser radar) ...
Tello Alonso, Maria Victoria (Fecha de defensa: 2011-02-07)
In the recent years, a wide interest has been focused on research and development for the operational use of satellite remote sensing tools for Earth observation. Among different types of sensors, ...
Ghavidel, Ali (Fecha de defensa: 2015-07-14)
In this Ph. D. dissertation the electromagnetic bias in GNSS-R (Global Navigation Satellite Systems Reflectometry) altimetry has been studied. GNSS-R altimetry is a new type of system that uses navigation ...