Exploració per autor "Vassileva Vesselinova, Natalia"

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    • A New CAC Policy Based on Traffic Characterization in Cellular Networks 

      Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco (Springer, 2008-05)
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      The Call Admission Control (CAC) method presented in this paper is based on the statistical properties of the network’s traffic variables. It probabilistically estimates the time until the release of a seized channel: the ...

    • A survey of routing protocols for energy constrained ad hoc wireless networks 

      Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco (IEEE, 2007-12)
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      In this survey we review energy-aware routing protocols for wireless multihop ad hoc networks and critically discuss the main results in this area. The classification presented is in no case unique but summarizes the chief ...

    • Energy and delay-constrained routing in mobile ad hoc networks: an initial approach 

      Sánchez Miquel, Laura; Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco; Carbajo Flores, Patricia (ACM, 2005-10)
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      Energy conservation is a critical issue regarding wireless mobile ad hoc networks, since the nodes are battery restrained and the depletion of their power defines the lifetime of the network. In this work a mechanism for ...

    • Guard capacity implementation in OPNET modeler WiMAX suite 

      Vassileva Vesselinova, Natalia; Koucheryavy, Yevgeni; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
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      Admission Control (AC) algorithms in mobile cellular networks support continuity of active communication sessions by guaranteeing availability of free resources. In this paper, we first describe the factors that condition ...

    • Validation of a traffic-based CAC method under general channel holding time 

      Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco (2009)
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      We validate a call admission control (CAC) method for mobile cellular networks under more restrictive conditions than those assumed in its design. The method uses distribution and the first and second moments of the ...