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Ara es mostren els items 1-20 de 86

    • A comprehensive solution for securing connected and autonomous vehicles 

      Kamal, Mohsin; Kyrkou, Christos; Piperigkos, Nikos; Papandreou, Andreas; Kloukiniotis, Andreas; Casademont Serra, Jordi; Porras, Natalia; Baños, Daniel; Diaz, Rodrigo; Durante, Nicola Gregorio; Hofmann, Klaus Peter; Kapsalas, Petros; Lalos, Aris; Moustakas, Konstantinos; Laoudias, Christos; Theocharides, Theocharides; Ellinas, Georgios (Institute of Electrical and Electronics Engineers (IEEE), 2022)
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      With the advent of Connected and Autonomous Vehicles (CAVs) comes the very real risk that these vehicles will be exposed to cyber-attacks by exploiting various vulnerabilities. This paper gives a technical overview of the ...

    • A study on the influence of transmission errors on WLAN 802.11 MAC performance 

      López Aguilera, M. Elena; Casademont Serra, Jordi; García Villegas, Eduard (2010)
      Article
      Accés restringit per política de l'editorial
      Since the advent of the first IEEE 802.11 standard for WLANs, several papers have been presented that evaluate the IEEE 802.11 DCF access method. In realistic WLAN environments frame errors usually occur due to non-ideal ...

    • A transmit power control proposal for IEEE 802.11 cellular networks 

      López Aguilera, M. Elena; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-05)
      Text en actes de congrés
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      Actually, the idea of designing an outdoor cellular network based on WLAN IEEE 802.11 results very attractive, due to the several advantages that this technology presents. It offers the equipment at a lower cost, operates ...

    • Análisis del protocolo IEEE 802.11b en un entorno celular 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Rojas Espinosa, Alfonso (Universidad de Las Palmas de Gran Canaria, Servicio de Publicaciones, 2003)
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      In this paper we present an analysis of the protocol IEEE 802.11b in different environments. Its performance in an indoor environment is evaluated, in terms of throughput and transmission delay, and the influence of the ...

    • Benchmarking the cooperative awareness service at application layer with IEEE 802.11p and LTE-PC5 Mode-4 

      Mendoza, Charmae Franchesca Ugnaya; Lopez, Leandro Miguel Wong; Camps-Mur, Daniel; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Vehicular communications hold the promise of disrupting mobility services and supporting the mass adoption of future autonomous vehicles. Regulators have set aside specific spectrum at the 5.9 GHz band to support Intelligent ...

    • CARAMEL: results on a secure architecture for connected and autonomous vehicles detecting GPS spoofing attacks 

      Vitale, Christian; Piperigkos, Nikos; Laoudias, Christos; Ellinas, Georgios; Casademont Serra, Jordi; Escrig, Josep; Kloukiniotis, Andreas; Lalos, Aris; Moustakas, Konstantinos; Diaz Rodriguez, Rodrigo; Baños, Daniel; Roqueta Crusats, Gemma; Kapsalas, Petros; Hofmann, Klaus Peter; Khodashenas, Pouria Sayyad (2021-05-04)
      Article
      Accés obert
      The main goal of the H2020-CARAMEL project is to address the cybersecurity gaps introduced by the new technological domains adopted by modern vehicles applying, among others, advanced Artificial Intelligence and Machine ...

    • Cálculo de las prestaciones de un sistema de telefonía móvil celular DCA con técnicas de mejora de capacidad 

      Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 1998-01-23)
      Tesi
      Accés obert
      El objetivo que ha motivado esta tesis ha sido el analizar y proponer mecanismos para incrementar la capacidad de tráfico de un sistema de acceso radio DECT (Digital Enhanced Cordless Telecommunications) en entornos de ...

    • Channel access unfairness of wireless LAN access methods 

      López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-06)
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      In this paper, we present an evaluation of chosen wireless LAN access methods involving stations with different bit error rates: n - 1 stations in ideal transmission conditions (BER = 0) and 1 station with a given bit error ...

    • Cooperative intelligent transport systems for vulnerable road users safety 

      Casademont Serra, Jordi; Calveras Augé, Anna M.; Quiñones, David; Navarro Rodero, Mònica; Arribas Lázaro, Javier; Catalán Cid, Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      Cooperative-Intelligent Transport Systems (C-ITS) are one of the flagships of new coming automotive and communication industries. Mobility needs to be safer and more efficient and C-ITS are the key for this new era. On the ...

    • Coverage and performance of cellular networks in Addis Ababa 

      Beyene, Asrat Mulatu; Casademont Serra, Jordi; Negash, Yalemzewd; Flattie, Ashagrie Getnet (International Association of Academicians (IAASSE), 2018)
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      Mobile device penetration rate is increasing alarmingly and their interactive features are being enhanced daily. Moreover, their prices are diminishing attracting more users to the already overburdened cellular infrastructure ...

    • Design and performance analysis of enhanced directional MAC protocols for cognitive radio wireless mesh networks 

      Atlabachew, Mulugeta; Casademont Serra, Jordi; Negash, Yalemzewd (Springer, 2022-01-01)
      Capítol de llibre
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      This paper presents the design and analysis of directional random access MAC protocols for cognitive radio wireless mesh network (CRWMN). We have proposed three directional random access MAC protocols for CRWMNs using three ...

    • Design, development and performance evaluation of a low-cost, Low-power wake-up radio system for WSN 

      Oller Bosch, Joaquim; Demirkol, Ilker Seyfettin; Casademont Serra, Jordi; Paradells Aspas, Josep (2013-11-01)
      Article
      Accés restringit per política de l'editorial
      Energy-efficient operation is a challenge for wireless sensor networks (WSNs). A common method employed for this purpose is duty-cycled operation, which extends battery lifetime yet incurs several types of energy wastes ...

    • Detecting and mitigating the impact of wideband jammers in IEEE 802.11 WLANs 

      García Villegas, Eduard; Gómez, Moisés; López Aguilera, M. Elena; Casademont Serra, Jordi (2010)
      Text en actes de congrés
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      IEEE 802.11 Wireless LANs (WLANs) are highly sensitive to Denial of Service (DoS) attacks carried out with jamming devices. In this paper we focus on 2.4GHz wideband constant jammers. The interest in the wideband jammer ...

    • El protocol Mobile IP. La mobilitat a Internet (II Part) 

      Vidal Ferré, Rafael; Paradells Aspas, Josep; Casademont Serra, Jordi (2006-12)
      Article
      Accés obert

    • El protocol Mobile IPv6. La mobilitat a Internet (i III Part) 

      Vidal Ferré, Rafael; Paradells Aspas, Josep; Casademont Serra, Jordi (2007-03)
      Article
      Accés obert

    • Energy efficient wireless networking of sensor nodes 

      Demirkol, Ilker Seyfettin; Paradells Aspas, Josep; Oller Bosch, Joaquim; Casademont Serra, Jordi; Calveras Augé, Anna M.; Catalán Cid, María Luisa (2013)
      Text en actes de congrés
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      Wireless sensor networks have paved the way to a new era in user applications, where information can be sensed, processed, and distributed from remote environments with minimal or no human interaction. As the sensor nodes ...

    • Enhancement proposal for WLAN IEEE 802.11e: desynchronization of its working procedure 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep; Rojas Espinosa, Alfonso (Institute of Electrical and Electronics Engineers, 2005)
      Text en actes de congrés
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      Up to the present, several studies have been performed in order to provide prioritization of stations or classes of service for WLAN IEEE 802.11. The IEEE 802.11e draft specification aims to extend the original IEEE 802.11 ...

    • Evaluación de IEEE 802.11g en un entorno celular exterior 

      López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep (2004-11)
      Text en actes de congrés
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      La mayoría de estudios que se encargan de analizar el comportamiento de IEEE 802.11 se encuentran limitados a entornos unicelulares. Sin embargo, la idea de diseñar una red celular basada en IEEE 802.11 resulta muy ...

    • Evaluating wireless LAN access methods in presence of transmission errors 

      López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-04)
      Text en actes de congrés
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      Several modifications of the IEEE 802.11 DCF access method have been proposed recently to improve the performance of wireless LANs. Up to now, such proposals have only been compared under ideal channel conditions. In this ...

    • Evaluation of IEEE 802.11 coexistence in WLAN deployments 

      López Aguilera, M. Elena; García Villegas, Eduard; Casademont Serra, Jordi (Springer, 2017-06-17)
      Article
      Accés obert
      Wi-Fi has become a successful technology since the publication of its first WLAN standard due to continuous advances and updates while remaining always backwards compatible. Backwards compatibility among subsequent standards ...