Exploració per autor "Urquiza Aguiar, Luis"

Ara es mostren els items 1-20 de 21

    • A collaborative protocol for anonymous reporting in vehicular ad hoc networks 

      Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge; Pallarès Segarra, Esteve (Elsevier, 2013-11-01)
      Article
      Accés restringit per política de l'editorial
      Vehicular ad hoc networks (VANETs) have emerged to leverage the power of modern communication technologies, applied to both vehicles and infrastructure. Allowing drivers to report traffic accidents and violations through ...

    • A geographical heuristic routing protocol for VANETs 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Aguilar Igartua, Mónica (2016-10-01)
      Article
      Accés obert
      Vehicular ad hoc networks (VANETs) leverage the communication system of Intelligent Transportation Systems (ITS). Recently, Delay-Tolerant Network (DTN) routing protocols have increased their popularity among the research ...

    • A multi-user game-theoretical multipath routing protocol to send video-warning messages over mobile ad hoc networks 

      Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Pallarès Segarra, Esteve; Tripp Barba, Carolina; Urquiza Aguiar, Luis; Fornés Guardia, Jordi; Sanvicente Gargallo, Emilio (2015-04-17)
      Article
      Accés obert
      The prevention of accidents is one of the most important goals of ad hoc networks in smart cities. When an accident happens, dynamic sensors (e.g., citizens with smart phones or tablets, smart vehicles and buses, etc.) ...

    • A multimetric, map-aware routing protocol for VANETs in urban areas 

      Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Rebollo Monedero, David; Cruz Llopis, Luis Javier de la; Mezher, Ahmad Mohamad; Aguilar-Calderón, José Alfonso (2014-01-28)
      Article
      Accés obert
      In recent years, the general interest in routing for vehicular ad hoc networks (VANETs) has increased notably. Many proposals have been presented to improve the behavior of the routing decisions in these very changeable ...

    • A stochastic optimization model for the placement of road site units 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Aguilar Igartua, Mónica (Springer, 2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper, we propose a simple and scalable optimization model for the deployment of road site units (RSUs). The model takes advantage of the inherent stochasticity provided by the vehicles’ movements by using mobility ...

    • A traffic-aware electric vehicle charging management system for smart cities 

      Barbecho Bautista, Pablo Andrés; Lemus Cárdenas, Leticia; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica (Elsevier, 2019-12-01)
      Article
      Accés obert
      The expected increase in the number of electric vehicles (EVs) in the coming years will contribute to reducing CO2 pollution in our cities. Currently, EVs' users may suffer from distress due to long charging service times ...

    • Available bandwidth estimation in GPSR for VANETs 

      Tripp Barba, Carolina; Aguilar Igartua, Mónica; Urquiza Aguiar, Luis; Mezher, Ahmad Mohamad; Zaldivar Colado, Aníbal; Guérin-Lassous, Isabelle (ACM, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes an adaptation of the collision probability used in the measure of the available bandwidth designed for Mobile Ad hoc Networks (MANETs) and which is described in ABE [12]. Instead, we propose a new ABE+ ...

    • Coherent, automatic address resolution for vehicular ad hoc networks 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Rebollo Monedero, David; Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica; Forné Muñoz, Jorge; Estrada Jiménez, José Antonio (2017-01-01)
      Article
      Accés obert
      The interest in vehicular communications has increased notably. In this paper, the use of the address resolution (AR) procedures is studied for vehicular ad hoc networks (VANETs). We analyse the poor performance of AR ...

    • Comparison of traffic demand generation tools in SUMO: case study: access highways to Quito 

      Urquiza Aguiar, Luis; Coloma Gómez, William; Barbecho Bautista, Pablo Andrés; Calderón, Javier (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      SUMO is one of the tools used to generate synthetic traces of vehi- cles for VANET simulations. Sumo allows creating vehicles’ routes manually, generate random traffic or use traffic demand genera- tion tools. In this ...

    • Design and evaluation of GBSR-B, an improvement of GPSR for VANETs 

      Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Article
      Accés restringit per política de l'editorial
      Wireless vehicular communications are a key technology to provide drivers with novel services such as collision avoidance, safety warnings and real-time traffic information. Other services are high-speed toll collection, ...

    • Digital hyper-transparency: leading e-government against privacy 

      Rodríguez Hoyos, Ana; Estrada Jiménez, José; Urquiza Aguiar, Luis; Parra Arnau, Javier; Forné Muñoz, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      For a long time, the Internet and web technologies have supported a more fluid interaction between public institutions and citizens through e-government. With this spirit, several public services are being offered online. ...

    • Heuristic methods in geographical routing protocols for VANETs 

      Urquiza Aguiar, Luis; Almeida, Daniel; Tripp Barba, Carolina; Aguilar Igartua, Mónica (Association for Computing Machinery (ACM), 2015)
      Text en actes de congrés
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      This paper proposes different local\hyph search heuristics to improve the performance of geographical routing protocols in VANET networks, which typically relies the selection of the next node only on the best candidate. ...

    • Impact of packet error modeling in VANET simulations 

      Tripp Barba, Carolina; Urquiza Aguiar, Luis; Estrada Jiménez, José Antonio; Aguilar-Calderón, José Alfonso; Zaldivar Colado, Aníbal; Aguilar Igartua, Mónica (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Simulation is a very valuable mechanism to study the performance of vehicular ad-hoc networks (VANETs), due to the high cost and effort involved in the deployment of vehicles in urban scenarios. Accordingly, as in real ...

    • MAX-MIN based buffer allocation for VANETs 

      Urquiza Aguiar, Luis; Vázquez Rodas, Andrés; Tripp Barba, Carolina; Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Sanvicente Gargallo, Emilio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Many proposals have studied the optimization of the EDCA mechanism used by the IEEE 802.11p MAC layer to provide QoS. In this work, we focus on the queuing process done by the different Access Categories (ACs). We propose ...

    • On collaborative anonymous communications in lossy networks 

      Rebollo-Monedero, David; Forné Muñoz, Jorge; Pallarès Segarra, Esteve; Parra-Arnau, Javier; Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica (2013-05-17)
      Article
      Accés restringit per política de l'editorial
      Message encryption does not prevent eavesdroppers from unveiling who is communicating with whom, when, or how frequently, a privacy risk wireless networks are particularly vulnerable to. The Crowds protocol, a well-established ...

    • On the impact of building attenuation models in urban VANET simulations 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Estrada Jimenez, Jose; Aguilar Igartua, Mónica (2015-01-08)
      Article
      Accés obert
      Buildings are important elements of cities for VANETs, since these obstacles may attenuate communications between vehicles. Consequently, the impact of buildings has to be considered as part of the attenuation model in ...

    • Optimized path selection in a game-theoretic routing protocol for video-streaming services over MANETs 

      Mezher, Ahmad Mohamad; Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Martín Faus, Isabel Victoria; Cruz Llopis, Luis Javier de la; Sanvicente Gargallo, Emilio (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Mobile ad hoc networks (MANETs) are infrastructureless networks formed by wireless mobile devices. Recently, the demand over multimedia services such as video streaming has increased specially since the number of mobile ...

    • Propagation and packet error models in VANET simulations 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Martín Faus, Isabel Victoria; Aguilar Igartua, Mónica (2014-05-01)
      Article
      Accés restringit per política de l'editorial
      In this paper, we review the workflow of the channel and physical layer modules in VANET simulations and briefly survey some of the most used propagation and packet error models in network simulators for this kind of ...

    • Realistic environment for VANET simulations to detect the presence of obstacles in Vehicular Ad Hoc Networks 

      Mezher, Ahmad Mohamad; Jurado Oltra, Juan; Urquiza Aguiar, Luis; Iza Paredes, Cristhian; Tripp Barba, Carolina; Aguilar Igartua, Mónica (Association for Computing Machinery (ACM), 2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Obstacles in Vehicular ad hoc networks (VANETs) in urban scenarios are an important issue. Normally, in traffic simulators vehicles can send/receive packets between each other if they are in the same transmission range no ...

    • Reducing duplicate packets in unicast VANET communications 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Romero Muir, Angel (Association for Computing Machinery (ACM), 2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In vehicular networks, the packet losses in the path between source and destination occur due to packet collisions, fast movement and a limited communication range of vehicles. Reliability mechanisms at different layers ...