Fernández Fernández, Adriana (Date of defense: 2018-06-29)
Achieving energy efficiency has recently become a key topic of networking research due to the ever-increasing power consumption and CO2 emissions generated by large data networks. This problem is becoming ...
Henarejos Hernández, Pol (Date of defense: 2017-07-19)
Radiocommunication systems have evolved significantly in recent years in order to meet present and future demands. Historically, time, frequency and more recently, spatial dimensions have been used to ...
Lagén Morancho, Sandra (Date of defense: 2016-12-21)
The envisioned rapid and exponential increase of wireless data traffic demand in the next years imposes rethinking current cellular networks due to the available spectrum scarcity. In this regard, 3 ...
Tabares Giraldo, Jeison (Date of defense: 2021-09-08)
Worldwide, the coherent technologies have revolutionized the optical communication systems, significantly increasing the capacity of the fiber channel owing to transmission of advanced modulation formats ...
Tomàs-Buliart, Joan (Date of defense: 2020-03-04)
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 ...
Darroudi, Seyed Mahdi (Date of defense: 2020-09-29)
Bluetooth Low Energy (BLE) has become a popular Internet of Things (IoT) technology. However, it was originally designed to only support the star topology. This PhD thesis investigates and evaluates ...
Ardanuy Della, Antoni (Date of defense: 2020-12-14)
This thesis aims at exploring the limits of low peak-power, low-cost, all-semiconductor, compact lidars (laser radars) for range-resolved remote sensing of atmospheric aerosols and clouds. The systems ...
Catalán Cid, Miguel (Date of defense: 2016-02-10)
The IEEE 802.11 standard was not initially designed to provide multi-hop capabilities. Therefore, providing a proper traffic performance in Multi-Hop IEEE 802.11 Wireless Networks (MIWNs) becomes a ...
Figuerola Fernández, Sergi (Date of defense: 2016-01-25)
This work was developed during a period where most of the optical management and provisioning system where manual and proprietary. This work contributed to the evolution of the state of the art of optical ...
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 ...