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Ara es mostren els items 52-71 de 86

    • GNSS location verification in connected and autonomous vehicles using in-vehicle multimodal sensor data fusion 

      Souli, Nicolas; Laoudias, Christos; Kolios, Panayiotis; Vitale, Christian; Ellinas, Georgios; Lalos, Aris; Casademont Serra, Jordi; Khodashenas, Pouria Sayyad; Kapsalas, Petros (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      Connected and Autonomous Vehicles (CAVs) rely on Global Navigation Satellite Systems (GNSS), e.g., the Global Positioning System (GPS), for the provision of accurate location information for various functionalities including ...

    • Has time come to switch from duty-cycled MAC protocols to wake-up radio for wireless sensor networks? 

      Oller, Joaquim; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard Michael (2016-04-01)
      Article
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      Duty-cycled Medium Access Control (MAC) protocols certainly improve the energy efficiency of wireless networks. However, most of these protocols still suffer from severe degrees of overhearing and idle listening. These two ...

    • Hybrid GNSS/INS/UWB positioning for live demonstration assisted driving 

      Navarro Rodero, Mònica; Arribas Lázaro, Javier; Vilà-Valls, Jordi; Casademont Serra, Jordi; Calveras Augé, Anna M.; Catalán-Cid, Marisa (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      In Cooperative Intelligent Transport Systems, precise and reliable positioning and navigation is a key feature for assisted or autonomous driving. This contribution presents experimental results from a pilot demonstration ...

    • IEEE 802.11-enabled wake-up radio system: design and performance evaluation 

      Oller Bosch, Joaquim; García Villegas, Eduard; López Aguilera, M. Elena; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard Michael (Institution of Electrical Engineers, 2014-09-25)
      Article
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      Today, the vast majority of personal communication devices, such as laptops, smartphones, and logically wireless fidelity (Wi-Fi) access points feature IEEE 802.11 chipsets. In turn, wake-up radio (WuR) systems are used ...

    • IEEE 802.11g performance in presence of beacon control frames 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep (Institute of Electrical and Electronics Engineers, 2004-09)
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      Most studies of the performance of IEEE 802.11 consider scenarios of ad-hoc topology networks and do not contemplate the network broadcast information contained in beacon frames. The paper presents a study of the performance ...

    • Impacto de mecanismos de seguridad en sensores IEEE 802.15.4 

      Tripp Barba, Carolina; Casademont Serra, Jordi (2009-09-15)
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      En la actualidad son muchos los mecanismos de seguridad que el estándar IEEE 802.15.4 permite a las redes inalámbricas de sensores [1] Dicho estándar define las especificaciones de la Capa de Acceso al Medio y la Capa ...

    • Integración de sistemas de comunicaciones móviles inalámbricas en una plataforma GIS 

      Casademont Serra, Jordi; López Aguilera, M. Elena; Paradells Aspas, Josep (2002)
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      El artículo presenta una nueva plataforma desarrollada para la comercialización de servicios avanzados de información geográfica para uso en dispositivos portátiles. La plataforma utiliza las redes de telecomunicación ...

    • Integration of wireless communications in a GIS platform 

      Casademont Serra, Jordi; López Aguilera, M. Elena; Paradells Aspas, Josep (2002-11)
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      This paper presents a new developed platform for the Commercialisation of Advanced Services of Geographical Information, focussed in portables devices, and that makes use of the telecommunication networks available today: ...

    • La mobilitat a Internet (I Part) 

      Vidal Ferré, Rafael; Paradells Aspas, Josep; Casademont Serra, Jordi (2006-09)
      Article
      Accés obert

    • Multi-radio V2X communications interoperability through a multi-access edge computing (MEC) 

      Casademont Serra, Jordi; Cordero, Bruno; Camps-Mur, Daniel; Morais da Conceição, Luis; Lalos, Aris; Vitale, Christian; Laoudias, Christos; Khodashenas, Pouria Sayyad (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      Nowadays, we are ready to have precommercial Cooperative Intelligent Transport Systems (C-ITS), nevertheless there exist challenging functional and security aspects that need to be addressed. One of them is the fact that, ...

    • Multiple antenna (MA) for cognitive radio based wireless mesh networks (CRWMNs): Spectrum Sensing (SS) 

      Atlabachew, Mulugeta; Casademont Serra, Jordi; Negash, Yalemzewd (Springer Link, 2018-07-05)
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      The concept of cognitive radio (CR) rings a big paradigm shift to the wireless communication domain. Extending this concept in to wireless mesh networks (WMN) results a CRWMN which alleviates the pragmatic spectrum congestion ...

    • Optimizing the delivery chain in heterogenous networks 

      Sánchez Loro, Xavier; Paradells Aspas, Josep; Casademont Serra, Jordi; Ferrer, Josep Lluís (2011)
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      Herein, we will focus on proposing a service taxonomy and classification for RBA/SOA architectures aiming to model a common framework for the description and composition of possible Atomic Ser- vices or networking ...

    • Outdoor IEEE 802.11g cellular network performance 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep (Institute of Electrical and Electronics Engineers, 2004)
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      Most studies about the performance of IEEE 802.11 are limited to a single cell environment. Nevertheless, the idea of designing an outdoor cellular network based on WLAN IEEE 802.11 is very attractive, due to the several ...

    • Performance enhancement of outdoor IEEE 802.11 cellular networks 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Rojas Espinosa, Alfonso; Cotrina Navau, Josep (ACTA Press, 2005-07)
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      Most studies about the performance of IEEE 802.11 are limited to a single cell environment. Nevertheless, the idea of designing an outdoor cellular network based on WLAN IEEE 802.11 results very attractive, due to the ...

    • Performance enhancement of WLAN IEEE 802.11 for asymmetric traffic 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep; Rojas Espinosa, Alfonso (Institute of Electrical and Electronics Engineers, 2005)
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      Most studies about the performance of IEEE 802.11 consider scenarios of ad-hoc topology and networks where all stations have the same traffic load (symmetric traffic conditions). This paper presents a study of performance ...

    • Performance evaluation and comparative analysis of SubCarrier Modulation Wake-up radio systems for energy-efficient wireless sensor networks 

      Oller Bosch, Joaquim; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard Michael (2013-12-19)
      Article
      Accés obert
      Energy-efficient communication is one of the main concerns of wireless sensor networks nowadays. A commonly employed approach for achieving energy efficiency has been the use of duty-cycled operation of the radio, where ...

    • Performance evaluation and compartive analysis of subcarrier modulation Wake-up radio systems for energy-efficient Wireless Sensor Networks 

      Oller Bosch, Joaquim; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard Michael (2014-01)
      Article
      Accés obert
      Energy-efficient communication is one of the main concerns of wireless sensor networks nowadays. A commonly employed approach for achieving energy efficiency has been the use of duty-cycled operation of the radio, where ...

    • Performance of wireless LAN access methods in multicell environments 

      López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-11)
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      In this paper, we address the issue of evaluating performance of wireless LANs in multicell scenarios. We try to understand the complex behavior of the DCF (Distributed Coordination Function) access method defined in the ...

    • Problemes Tema 1 (Xarxes Commutades) 

      Aguilar Igartua, Mónica; Alins Delgado, Juan José; Altés Bosch, Jorge; Barceló Arroyo, Francisco; Cruz Llopis, Luis Javier de la; Esparza Martín, Óscar; Forné Muñoz, Jorge; Martín Escalona, Israel; Martín Faus, Isabel Victoria; Mata Diaz, Jorge; Muñoz Tapia, José Luis; Pallarès Segarra, Esteve; Serrat Fernández, Juan; Soriano Ibáñez, Miguel; Postigo Boix, Marcos; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2023-04-08)
      Problema, exercici
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    • Problemes Tema 2 (MAC i LLC) 

      Aguilar Igartua, Mónica; Alins Delgado, Juan José; Altés Bosch, Jorge; Barceló Arroyo, Francisco; Calveras Augé, Anna M.; Casademont Serra, Jordi; Cruz Llopis, Luis Javier de la; Esparza Martín, Óscar; Forné Muñoz, Jorge; Hesselbach Serra, Xavier; Martín Escalona, Israel; Martín Faus, Isabel Victoria; Mata Diaz, Jorge; Muñoz Tapia, José Luis; Pallarès Segarra, Esteve; Paradells Aspas, Josep; Pegueroles Vallés, Josep R.; Rojas Espinosa, Alfonso; Serrat Fernández, Juan; Soriano Ibáñez, Miguel; Postigo Boix, Marcos; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2023-04-08)
      Problema, exercici
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