Now showing items 21-28 of 28

    • 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
      Restricted access - publisher's policy
      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
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • Performance evaluation of a hybrid sensor and vehicular network to improve road safety 

      Tripp Barba, Carolina; Ornelas, Karen; Aguilar Igartua, Mónica (2010)
      Conference report
      Open Access
      In the last years, wireless networks have become a widely spread type of communication technology and also a challenging scientific area for new fields of research. Many contributions in ad hoc networks, such as WSNs ...
    • 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
      Restricted access - publisher's policy
      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)
      Conference lecture
      Restricted access - publisher's policy
      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)
      Conference lecture
      Restricted access - publisher's policy
      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 ...
    • Smart city for VANETs using warning messages, traffic statistics and intelligent traffic lights 

      Tripp Barba, Carolina; Mateos, Miguel Ángel; Regañas Soto, Pablo; Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica (IEEE, 2012)
      Conference report
      Restricted access - publisher's policy
      Road safety has become a main issue for governments and car manufacturers in the last twenty years. The development of new vehicular technologies has favoured companies, researchers and institutions to focus their efforts ...