Browsing by Author "Casadevall Palacio, Fernando José"Més informacióMés informació

Now showing items 1-20 of 111

    • A deep q network-based multi-connectivity algorithm for heterogeneous 4G/5G cellular systems 

      Hernández Carlón, Juan Jesús; Pérez Romero, Jordi; Sallent Roig, Oriol; Vilà Muñoz, Irene; Casadevall Palacio, Fernando José (Springer, 2022)
      Conference report
      Restricted access - publisher's policy
      Multi-connectivity, which allows a user equipment to be simultaneously connected to multiple cells from different radio access network nodes that can be from a single or multiple radio access technologies, has emerged as ...

    • A deep Q-network-based algorithm for multi-connectivity optimization in heterogeneous cellular-networks † 

      Hernández Carlón, Juan Jesús; Pérez Romero, Jordi; Sallent Roig, Oriol; Vilà Muñoz, Irene; Casadevall Palacio, Fernando José (2022-08-01)
      Article
      Open Access
      The use of multi-connectivity has become a useful tool to manage the traffic in heterogeneous cellular network deployments, since it allows a device to be simultaneously connected to multiple cells. The proper exploitation ...

    • A framework for multidimensional modelling of spectrum occupancy in the simulation of cognitive radio systems 

      López Benitez, Miguel; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
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      Spectrum models play a key role in the research of Dynamic Spectrum Access/Cognitive Radio (DSA/CR) systems. Models existing to date are able to characterise the statistical properties of spectrum occupancy in only one ...

    • A new RAN slicing strategy for multi-tenancy support in a WLAN scenario 

      Koutlia, Aikaterini; Umbert Juliana, Anna; Riggio, R.; Vilà Muñoz, Irene; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Radio Access Network (RAN) slicing is a key technology, based on Software Defined Networks (SDN) and Network Function Virtualization (NFV), which aims at providing a more efficient utilization of the available network ...

    • A radio spectrum measurement platform for spectrum surveying in cognitive radio 

      López Benítez, Miguel; Casadevall Palacio, Fernando José (2011)
      Conference report
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      This paper presents a sophisticated radio spectrum measurement platform specifically envisaged and designed for spectrum occupancy surveys in the context of Dynamic Spectrum Access/Cognitive Radio (DSA/CR). The presented ...

    • A real time emulator of the UMTS lower layers for the wineglass demonstrator 

      Gelonch Bosch, Antonio José; Revés Ballesté, Xavier; Umbert Juliana, Anna; Ferrús Ferré, Ramón Antonio; Casadevall Palacio, Fernando José (European Commission, 2000)
      Conference report
      Open Access
      In this paper, a general description of the main features of a Real Time Emulator, which emulates the lower layers of the UMTS Radio Access system, is presented. For the physical layer, the emulation model is based on the ...

    • Acotación rápida de la probabilidad de error en un sistema de transmisión digital por fibra óptica con símbolos no correlados 

      Junyent Giralt, Gabriel; Casadevall Palacio, Fernando José (Unión Científica Internacional de Radio (URSI), 1983)
      Conference report
      Open Access
      This paper deals with the problem of determinig an upper bound on the average conditional error probabilities in a digital optical fiber communication system with non-correlated symbols, in the presence of additive noise ...

    • An emulator framework for a new radio resource management for QoS guaranteed services in W-CDMA 

      Sallent Roig, Oriol; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10)
      Article
      Open Access
      In the context of third-generation (3G) systems a mix of services with different requirements are expected. Consequently, packet scheduling mechanisms for quality of service (QoS) guarantees will play a key role. This paper ...

    • An implementation of UTRAN for WINEGLASS access network emulator 

      Badini, F; SCARRONE, E; Kuehn, E; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (European Commission, 2000)
      Conference report
      Open Access
      3G systems are designed for support of a brand new set of services (like location based services) thus, the capability to evaluate their provision in the laboratory is mandatory for their deployment. The IST WINEGLASS ...

    • An outdoor TV band radio environment map for a manhattan like layout 

      Umbert Juliana, Anna; Casadevall Palacio, Fernando José; Rodríguez, Estuardo G. (2016)
      Conference report
      Restricted access - publisher's policy
      This paper presents an outdoor Radio Environment Map (REM) for the television band applied to the UPCCampus Nord, which has a Manhattan like structure. A measurement campaign of the received TV signal in the streets and ...

    • Analysis of diversity and equalization techniques applied to M-QAM digital mobile radio systems 

      Valdominos Bardají, Antonio; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 1994)
      Conference report
      Open Access
      Presents an investigation of diversity and/or equalization techniques applied to 4 and 16-QAM TDMA radio systems for rapid fading dispersive channels. In particular, typical urban (TU) environments have been considered. A ...

    • Análisis de prestaciones de algoritmos pseudo-mlse en sistemas TCM aplicados a comunicaciones móviles 

      Alfaro, A. J.; Casadevall Palacio, Fernando José (1991)
      Conference report
      Open Access
      This article describes the problematic of using TCM (frellis Coded Modulations) in a mobile indoor environment characterized by a fast fading Rayleigh channel. This modulation technique involves the use of MLSE (Maximum ...

    • Application of radio environment maps for dynamic broadband access in TV bands in urban areas 

      Kliks, Adrian; Kryszkiewicz, Pawel; Umbert Juliana, Anna; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Kulacz, Lukasz (Institute of Electrical and Electronics Engineers (IEEE), 2017-09-09)
      Article
      Open Access
      Spectrum sharing based on the dedicated databases, particularly in the context of TV band, is widely considered as a promising tool for better spectrum utilization in the future wireless networks. Practical realization of ...

    • Bluetooth: circuits, sistemes i aplicacions en l'entorn de les TIC 

      Aragonès Cervera, Xavier; González, José Luis; Pérez Neira, Ana Isabel; Casadevall Palacio, Fernando José; Paradells Aspas, Josep (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
      Conference report
      Open Access
      En el projecte s'han implementat uns mòduls formatius, que inclouen tant una vessant teòrica com una part experimental, que permetin a un estudiant de segon cicle de la ETSETB conèixer i desenvolupar aplicacions sobre un ...

    • Capacity and coverage trade-off in WCDMA environments with repeaters deployment 

      García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (WPMC, 2005)
      Conference lecture
      Open Access
      This work derives the analytic expression of the feasibility condition for the uplink of a WCDMA mobile communications system with repeaters deployment in a multiservice environment with a general heterogeneous layout. ...

    • Capacity and coverage tradeoff in WCDMA environments with repeaters deployment 

      García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (Institute of Electrical and Electronics Engineers (IEEE), 2005-09-30)
      Conference lecture
      Restricted access - publisher's policy
      This paper derives the analytic expression of the feasibility condition for the uplink of a WCDMA mobile communications system with repeaters in a multiservice environment with a general heterogeneous layout. In particular, ...

    • Capacity and coverage tradeoff in WCDMA environments with repeaters deployment. 

      García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (2007-02)
      Article
      Open Access

    • Capacity, fairness, and QoS trade-offs in wireless networks with applications to LTE 

      Bezerra Rodrigues, Emanuel; Lima, Francisco J. M.; Casadevall Palacio, Fernando José; Cavalcanti, Rodrigo (2013-11-01)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Wireless mobile network optimization is a complex task that consists in achieving different design objectives such as spectral efficiency, energy efficiency, fairness, and quality of service. Radio resource allocation is ...

    • Comunicaciones interiores via radio: analisis de las prestaciones de diversidad e igualación 

      Valdominos Bardají, Antonio; Casadevall Palacio, Fernando José (Universidad de Málaga, 1992)
      Conference report
      Open Access

    • Comunicaciones móviles interiores: estudio de técnicas de diversidad e igualación 

      Casadevall Palacio, Fernando José; Sarrias, M.; Fernández, J. J.; Arbusa, J. (1990)
      Conference report
      Open Access