Technological solutions for Mobile communications systems and networks.Research Topics
Wireless communications surrounding from inside the human body are envisioned to improve healthcare and wellbeing. However, signal transmission
considering the human body is challenging due to the unique characteristics of human tissues. In this context, the MCG is focused on the research of
wireless communications from implanted devices (pacemaker or capsule endoscope…). Moreover, the MCG also develops new electromagnetic models of human
tissues, also known as phantoms, that allows a fast an easy development and testing of wireless devices operating inside the human body with an
important reduction of animal experimentation.
Multiple-Input-Multiple-Output (MIMO) communication systems that make use of multiple antennas transceivers can achieve much higher throughput compared to single-antenna devices. However, advanced demodulation and detection algorithms of the received signals have to be carefully designed, theoretically analyzed and practically validated through numerical simulations in order to achieve the promised capacity of MIMO systems.
The MCG participates together with other european partners in the conceptualization of the new family of 5G wireless standards. The group is researching some techniques related with multi-hop celular, no-coherent transmission and the coordination in transmission and reception from multiple access points.
Nowadays 3G and 4G mobile systems are heading service saturation, so new paradigms that would obtain 100 times the current systems’ capacity have to be addressed. One of the most promising techniques is the use of cooperation and coordination between multiple access points in order to manage the interference transmitted when serving multiple users. Advanced signal processing in the PHY and MAC layer have to be carefully designed in order to obtain the required performance.
Nowadays, broadcast and mobile operators are compete for the availabilty of the spectrum. The MCG works on the analysis of the interferences between different technologies as well as the proposal of new solutions to allow an easy coexistence of them.
Wireless communications have evolved from the first generation system that focused on voice transmission to 4G in which data and applications will be responsible for most of the generated traffic, so hardware must also be improved to allow for higher data rates processing. Indeed, industry is considering migrating from the current massive use of ASIC devices to those that can offer more reprogrammability together with limited energy consumption. In the first steps of this migration, the use of multicore and many-core processors as Graphics Processing Units (GPU) can provide high performance at a remarkably low price. However, its architecture can be fully exploited only if its parallel programming is optimized from the very first steps of the algorithm formulation.
The Mobile Commmunications Group works on the design and optimization of digital television networks for local service provision in SFN networks, and the simultaneous transmission of fixed and mobile services over the same network.
The concept of femtocell involves the deployment of access points controlled by the operator inside households. In this area, the MCG designs new management mechanisms that allow the optimal coexistence of these equipments with the operator network.
The MCG owns a DVB-T/T2 transmission pilot for carrying out field tests and measurements of the efficiency in real scenarios. Likewise, there is an end-to-end system for the emulation and measurement of terrestrial digital television transmissions under different standards (ATSC, ISDB-T, DVB).
This research line is focused on the development of a DVB-T2 gateway that allows the emulation of new transmission techniques, and it is also focused on the evaluation of the statistic multiplexing and technical solutions for the transmission of local services.
The Mobile Communications Group evaluates different transmission techniques for the improvement of the spectral efficiency of terrestrial digital television networks. Nowadays, the MCG participates in some DVB Project activities and the initiative FOBTV through the study of MIMO and TFS (Time Frequency Slicing) transmission and reception techniques.
The dissemination of contents in broadcast mode is nowadays a basic issue to reduce the congestion in mobile communications networks. The MCG is researching technological improvements and planning and coexistence aspects to optimize the operation of the 3GPP's broadcast solution.
Instituto de Telecomunicaciones
y Aplicaciones Multimedia (iTEAM)
Edificio 8G. Planta 4ª, acceso D
Universitat Poltècnica de València
Camino de Vera, s/n
Phone +34 963879580
Fax +34 963879583