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Ara es mostren els items 59-75 de 75

    • Redes ad-hoc : el próximo reto 

      Gómez Montenegro, Carles; Paradells Aspas, Josep (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2004)
      Article
      Accés obert
      El éxito de las comunicaciones inalámbricas y la progresiva reducción en el tamaño de los dispositivos con capacidad para comunicaciones de datos ha situado en un primer plano a las denominadas redes móviles ad-hoc o ...

    • Redes de comunicaciones : de la telefonía móvil a Internet 

      Beltran Sanchidrian, Victòria; Casals Ibáñez, Lluís; Catalán Cid, María Luisa; Catalán Cid, Miguel; García Villegas, Eduard; Gómez Montenegro, Carlos; Hesselbach Serra, Xavier; López Aguilera, M. Elena; Paradells Aspas, Josep; Sánchez Vila, Francisco Javier; Vidal Ferré, Rafael; Calveras Augé, Anna M. (Universitat Politècnica de Catalunya, 2010)
      Llibre
      Accés restringit als usuaris de la UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC
      Vivimos completamente rodeados por una miríada de dispositivos electrónicos interconectados, que a su vez originan nuevos servicios y nuevas formas de entender y establecer las relaciones sociales. Nuevas palabras y conceptos ...

    • Research proposal: design, development and evaluation of adaptative and interactive solutions for high-quality viewport-aware VR360 video processing and delivery 

      Fernández Dasí, Miguel; Montagud, Mario; Paradells Aspas, Josep (Association for Computing Machinery (ACM), 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper contains the research proposal of Miguel Fernández Dasí that was presented at the MMSys 2022 doctoral symposium.1 The production and consumption of multimedia content is continuously increasing, and this ...

    • Should we use the default protocol settings for networks of constrained devices? 

      Betzler, August; Gómez Montenegro, Carlos; Demirkol, Ilker Seyfettin; Paradells Aspas, Josep (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Constrained devices will play a crucial role in the Internet of Things. These devices use communication technologies which often support the formation of wireless multihop topologies. Therefore, end-to-end data transfer ...

    • SIP/SIMPLE resource list server : optimization or burden for presence systems 

      Beltrán Martínez, María Victoria; Paradells Aspas, Josep (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Presence information contains all the context about users, services and devices that applications need to take more proactive and intelligent decisions. SIP/SIMPLE is the de facto framework for initiating, managing and ...

    • Smart cities as an application of internet of things: experiences and lessons learnt in Barcelona 

      Gea, Tomas; Paradells Aspas, Josep; Lamarca, Mariano; Roldan, David (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Internet of things is a ubiquitous technology that will be present everywhere. One of the first applications will be smart cities. Cities are growing in population and citizens demand better services from the administration ...

    • Stochastic simulation of successive waves of COVID-19 in the province of Barcelona 

      Bosman, Martine; Esteve Palos, Albert; Gabbanelli, Luciano; Jordán Parra, Javier; López Gay, Antonio; Manera, Marc; Martínez Rodríguez, Manel; Masjuan Queralt, Pere; Mir Martínez, Lluïsa Maria; Paradells Aspas, Josep; Pignatelli, Alessio; Riu, Imma; Vitagliano, Vincenzo (2023-03)
      Article
      Accés obert
      Analytic compartmental models are currently used in mathematical epidemiology to forecast the COVID-19 pandemic evolution and explore the impact of mitigation strategies. In general, such models treat the population as a ...

    • Telefonia mòbil : pràctiques amb simulador software 

      Casademont Serra, Jordi; Paradells Aspas, Josep (Edicions UPC, 1999)
      Llibre
      Accés restringit a la comunitat UPC
      Aquest llibre correspon al manual de pràctiques d'un simulador de comunicacions mòbils cel·lulars que pot executar-se amb o sense animació. La pràctica que es proposa cobreix dos camps diferents, el primer són els sistemes ...

    • The M/D/C queue with priority: application to trunked mobile radio systems 

      Barceló Arroyo, Francisco; Casares Giner, Vicente; Paradells Aspas, Josep (IEE, 1996-08)
      Article
      Accés restringit per política de l'editorial
      A procedure is presented for estimating the mean waiting time in an M/D/C queue with two levels of nonpre-emptive priority. The approximation gives a maximum relative error of 10% for heavy load and is greater than the ...

    • Time-Knocking: a novel addressing mechanism for wake-up receivers 

      Oller Bosch, Joaquim; Demirkol, Ilker Seyfettin; Paradells Aspas, Josep; Casademont Serra, Jordi; Heinzelman, Wendi (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Wake-up radios present a promising alternative to traditional duty-cycle approaches, by reducing overhearing and by eliminating idle listening completely. However, energy-efficient operation of the wake-up mechanism is ...

    • Towards energy-autonomous wake-up receiver using visible light communication 

      Sariol Ramos, Joyce; Demirkol, Ilker Seyfettin; Paradells Aspas, Josep; Vössing, Daniel; Gad, Karim M.; Kasemann, Martin (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      The use of Visible Light Communication (VLC) in wake-up communication systems is a potential energy-efficient and low-cost solution for wireless communication of consumer electronics. In this paper, we go one step further ...

    • Urban automation networks: current and emerging solutions for sensed data collection and actuation in smart cities 

      Gómez Montenegro, Carlos; Paradells Aspas, Josep (2015-09-10)
      Article
      Accés obert
      Urban Automation Networks (UANs) are being deployed worldwide in order to enable Smart City applications. Given the crucial role of UANs, as well as their diversity, it is critically important to assess their properties ...

    • Wake-up radio as an energy-efficient alternative to conventional wireless sensor networks MAC protocols 

      Oller Bosch, Joaquim; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard (Association for Computing Machinery (ACM), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The use of duty-cycling in Medium Access Control (MAC) protocols effectively helps improving the energy efficiency of wireless networks. However, while the benefits of these protocols are unquestionable, most of them still ...

    • Wake-up radio: an enabler of wireless convergence 

      Cervià Caballé, Martí; Calveras Augé, Anna M.; Paradells Aspas, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      Nowadays, several wireless communication solutions targeted at low-power devices (e.g. sensors, actuators) compete for market dominance. As a consequence, the deployment of the Internet of Things is slowed by fragmentation. ...

    • Web browsing optimization over 2.5G and 3G: end-to-end mechanisms vs. usage of performance enhancing proxies 

      Gómez Montenegro, Carlos; Catalán Cid, María Luisa; Viamonte Solé, David; Paradells Aspas, Josep; Calveras Augé, Anna M. (2008-02)
      Article
      Accés obert
      2.5 Generation (2.5G) and Third Generation (3G) cellular wireless networks allow mobile Internet access withbearers specifically designed for data communications. However, Internet protocols under-utilize wireless widearea ...

    • Weighted contention and interference routing metric (WCIM): Research Report 

      Catalán Cid, Miguel; Ferrer, Josep Lluís; Gómez Montenegro, Carlos; Paradells Aspas, Josep (2010-07-08)
      Report de recerca
      Accés obert
      Contention- and Interference-Aware Flow-based Routing in Wireless Mesh Networks: design and evaluation of a novel routing metric Report 1: Analysis of WCIM model Report 2: Simulations

    • Wireless technology applied to GIS 

      Casademont Serra, Jordi; López Aguilera, M. Elena; Paradells Aspas, Josep; Rojas Espinosa, Alfonso; Calveras Augé, Anna M.; Barceló Arroyo, Francisco; Cotrina Navau, Josep (Elsevier, 2004-07)
      Article
      Accés restringit per política de l'editorial
      At present, there is a growing interest in wireless applications, due to the fact that the technology begins to support them at reasonable costs. In this paper, we present the technology currently available for use in ...