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Ítem Performance evaluation of Vertical Handoff Algorithms(IEEE, 2010-10-10) Navarro Cadavid, AndresDifferent Vertical Handoff Algorithms (VHA) have been proposed in the literature recently. However, there is no consensus on how to evaluate performance of different VHA at the research community. Although some models have been proposed for evaluation of the VHA, this issue is a challenge because the VHA have evolved to become more sophisticated, thus the evaluation models must consider a variety of parameters. In this paper, we propose a new evaluation model for VHA that has been designed based on specific concepts taken from the multi-criteria evaluation and operational reliability. The proposed evaluation model allows analyzing VHA using measured values of some defined parameters, which can be obtained from simulating VHA on a network simulation tool. We present as a case study an evaluation of two VHA that shows the new model functionality and results. © 2010 IEEE.Ítem Análisis de Desempeño de Mecanismo de QoS en Redes Convergentes(ResearchGate, 2010-08-01) Cuellar Quiñones, Juan CarlosEn este trabajo se presenta el análisis de de resultados de una serie de simulaciones donde se analiza que mecanismo de QoS logra mantener dentro de valores admisibles los parámetros de calidad de servicio que presentan las recomendaciones Y.1540 y Y.1541 para la aplicación de voz, apoyados en un grupo de configuraciones realizadas en el núcleo de una red convergente con infraestructura MPLS.