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Ara es mostren els items 58-77 de 112

    • La evaluación en PBL: un caso práctico 

      García Lozano, Mario; Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Gelonch Bosch, Antonio José; Alonso Zárate, Luis Gonzaga; Ruiz Boqué, Sílvia (2008)
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      Las ventajas de estructurar una asignatura, un conjunto o incluso todo un plan de estudios mediante Aprendizaje Basado en Proyectos (PBL) han sido ampliamente expuestas de forma teórica y práctica ...

    • La prueba piloto de adaptación al EEES en la Escuela Politécnica Superior de Castelldefels 

      Alonso Zárate, Luis Gonzaga; Collado Gómez, Juan Carlos; Hernández Marco, Jordi; Ruiz Boqué, Sílvia; Valero García, Miguel (Universidad Jaume I, 2008)
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      La prueba piloto de adaptación al EEES que se ha llevado a cabo en la Escuela Politécnica Superior de Castelldefels entre 2004 y 2007 ha motivado una importante actividad innovadora que nos ha permitido extraer numerosas ...

    • Laser noise impact in the design of an heterodyne optical PSK receiver 

      Ruiz Boqué, Sílvia; Junyent Giralt, Gabriel (1989)
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      An evaluation of the performance of a coherent optical receiver for binary PSK (phase-shift keying) is carried out. Both AM and FM noise due to transmitter and local oscillator semiconductor lasers have been taken into ...

    • Link abstraction models based on mutual information for LTE downlink 

      Olmos Bonafé, Juan José; Ruiz Boqué, Sílvia; García Lozano, Mario; Martín Sacristán, David (2010-06-02)
      Comunicació de congrés
      Accés obert

    • Link and system level simulation of downlink LTE 

      González González, David; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José; García Lozano, Mario; Serra, Albert (2009-02-28)
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      3GPP LTE is the evolution of the UMTS which will make possible to deliver next generation high quality multimedia services according to the users’ expectations. Since Radio Resource Management (RRM) has been recognized as ...

    • Link level simulator for LTE downlink 

      Olmos Bonafé, Juan José; Serra, Albert; Ruiz Boqué, Sílvia; García Lozano, Mario; González González, David (COST, 2009-02-28)
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      3GPP LTE is the evolution of UMTS which will make possible to deliver next generation high quality multimedia services according to the users’ expectations. The flexibility of the downlink OFDM radio interface with Adaptive ...

    • LTE UL power control evaluation in a system level simulator for synthetic and realistic scenarios 

      Lema, Maria A.; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José; Pérez Díaz de Cerio, David (2011)
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      The research involved in this study comprises the analysis of the impact of the power control algorithm and its performance in the system level. Following our work in TD 01040, the LTE system level simulator has been ...

    • Machine learning adaptive computational capacity prediction for dynamic resource management in C-RAN 

      Guerra Gómez, Rolando; Ruiz Boqué, Sílvia; García Lozano, Mario; Olmos Bonafé, Juan José (2020-05-23)
      Article
      Accés obert
      Efficient computational resource management in 5G Cloud Radio Access Network (C-RAN)environments is a challenging problem because it has to account simultaneously for throughput, latency,power efficiency, and optimization ...

    • Machine learning techniques applied to multiband spectrum sensing in cognitive radios 

      Molina Tenorio, Yanqueleth; Prieto Guerrero, Alfonso; Aguilar Gomez, Rafael; Ruiz Boqué, Sílvia (Multidisciplinary Digital Publishing Institute (MDPI), 2019-10-30)
      Article
      Accés obert
      In this work, three specific machine learning techniques (neural networks, expectation maximization and k-means) are applied to a multiband spectrum sensing technique for cognitive radios. All of them have been used as a ...

    • Machine-learning based traffic forecasting for resource management in C-RAN 

      Guerra Gómez, Rolando; Ruiz Boqué, Sílvia; García Lozano, Mario; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      The assumption of a fixed computational capacityat the Baseband Unit (BBU) pools in a Cloud Radio Access Network (C-RAN) deployment results in underutilized resourcesor unsatisfied users depending on ...

    • Measurement-based LoS/NLoS channel modeling for hot-spot urban scenarios in UMTS networks 

      Chen, Jiajing; Yin, Xuefeng; Tian, Li; Zhang, Nan; He, Yonguy; Cheng, Xiang; Duan, Weiming; Ruiz Boqué, Sílvia (2014-08-17)
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      Accés obert
      A measurement campaign is introduced for modeling radio channels with either line-of-sight (LoS) or non-line-of-sight (NLoS) connection between user equipment (UE) and NodeB (NB) in an operating universal mobile ...

    • Measurement-based LoS/NLoS channel modeling for hot-spot urban scenarios in UMTS networks 

      Chen, Jiajing; Yin, Xuefeng; Tian, Li; Zhang, Nan; He, Yonguy; Cheng, Xiang; Duan, Weiming; Ruiz Boqué, Sílvia (2014)
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      In this contribution, a measurement campaign is introduced for modeling radio channels with either Line-of-Sight (LoS) or Non-Line-of-Sight (NLoS) connection between a user equipment (UE) and a NodeB (NB) in an operating ...

    • Metaheuristic proposal to minimize self-interference in single frequency networks 

      García Lozano, Mario; Ruiz Boqué, Sílvia; Lema, Maria A.; Torras, Evelyn; Olmos Bonafé, Juan José; Minerva, Flaminio (2010-06-02)
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    • MPR-aware scheduler for carrier aggregation transmissions in LTE uplink 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia (2015-09-01)
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      Unlike previous Long Term Evolution (LTE) releases, LTE - Advanced (LTE-A) allows the use of non-contiguous resource allocation in the uplink (UL). This feature leads to increase the spectral efficiency thanks to link ...

    • Multiobjective optimization of fractional frequency reuse for irregular OFDMA macrocellular deployments 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Lema, Maria A.; Lee, Dong Seop (2015-06)
      Article
      Accés obert
      Interference mitigation has been identified as a key challenge for emerging cellular technologies based on Orthogonal Frequency Division Multiple Access, such as Long Term Evolution. In this context, static intercell ...

    • Obtencion de un perfil de retardo de potencias en un entorno "indoor" mediante el uso de un analizador de redes 

      Agustí Comes, Ramon; Ruiz Boqué, Sílvia (1991)
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      The results of a new method in wide band indoor channel measuremenrs are presemed in This paper. Multipath propagarion of this channel has been studied and compared jor two type of medium-size buildings in the 900 M Hz and ...

    • On the definition of reference scenarios for LTE-A Link level simulations within COST IC1004 

      Olmos Bonafé, Juan José; Serra, Albert; Ruiz Boqué, Sílvia (2013)
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      The simulation of LTE and LTE-A at link level is a research topic for several COST IC1004 institutions. It was agreed in previous meetings that it would be useful to define a common set of scenarios for LTE and LTE-A link ...

    • On the impact of repeaters deployment on WCDMA networks planning 

      García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia; Correia, L M (Institute of Electrical and Electronics Engineers (IEEE), 2006)
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      This paper addresses the analysis of WCDMA systems with repeaters deployment. The real different path delays, taking into account the repeaters presence and the finite nature of the time window of Rake receivers are ...

    • On the mobility of moderate speed users in ultra dense small cell deployments with mmW 

      Joud, Mohammad; García Lozano, Mario; Ruiz Boqué, Sílvia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper deals with mobility robustness in a context of ultra-dense deployments operating at the millimeter wave (mmW) band. In order to increase the threshold speed of user equipments (UEs) allowed at the small cell ...

    • On the need for dynamic downlink intercell interference coordination for realistic long term evolution deployments 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2012-02-24)
      Article
      Accés restringit per política de l'editorial
      Intercell interference is the main issue limiting the capacity of modern orthogonal frequency-division multiple access based cellular networks. Recently, extensive research work has been carried out in this field, and ...