Now showing items 1-8 of 8

  • A hybrid cooperative design for energy-efficient surveillance in wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (VDE Conference Publications, 2012)
    Conference report
    Restricted access - publisher's policy
    In Wireless Multimedia Sensor Networks (WMSNs) the lifetime of battery-operated visual nodes is limited by their energy consumption, which is proportional to the energy required for sensing, processing, and transmitting ...
  • A method for clustering and cooperation in wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (2010-04)
    Article
    Open Access
    Wireless multimedia sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbouring sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical ...
  • Duo-MAC: Energy and time constrained data delivery MAC protocol in wireless sensor networks 

    Doudou, Messaoud; Alaei, Mohammad; Djenouri, Djamel; Barceló Ordinas, José María; Badache, Nadjib (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    We present Duo-MAC, an asynchronous cascading wake-up scheduled MAC protocol for heterogeneous traffic forwarding in low-power wireless networks. Duo-MAC deals with energy-delay minimization problem and copes with transmission ...
  • Energy efficient cooperative node management for wireless multimedia sensor networks 

    Alaei, Mohammad (Universitat Politècnica de Catalunya, 2013-06-27)
    Doctoral thesis
    Open Access
    In Wireless Multimedia Sensor Networks (WMSNs) the lifetime of battery operated visual nodes is limited by their energy consumption, which is proportional to the energy required for sensing, processing, and transmitting ...
  • Node clustering based on overlapping FoVs for wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (2010)
    Conference report
    Open Access
    Wireless Multimedia Sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbor sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical sensor ...
  • Power management in sensing subsystem of wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (InTech — Open Access Company, 2012-03-14)
    Part of book or chapter of book
    Open Access
    A wireless sensor network consists of sensor nodes deployed over a geographical area for monitoring physical phenomena like temperature, humidity, vibrations, seismic events, and so on. Typically, a sensor node is a tiny ...
  • Priority-based node selection and scheduling for wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (IEEE Computer Society Publications, 2010)
    Conference report
    Open Access
    A critical aspect of applications with wireless sensor networks is network lifetime. Sensing and communications consume energy particularly in wireless multimedia sensor networks (WMSN) due to huge amount of data generated ...
  • Real-time multimedia monitoring in large-scale wireless multimedia sensor networks: research challenges 

    Cesana, Matteo; Redondi, Alessandro; Tiglao, Nestor; Grilo, Antonio; Barceló Ordinas, José María; Alaei, Mohammad; Todorova, Petia (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    Wireless Sensor Networks (WSNs) have enjoyed dramatic developments over the last decade. The availability of CMOS cameras and microphones enlarged the scope of WSNs paving the way to the development of Wireless Multimedia ...