Efficient recovery algorithms for wireless mesh networks with cognitive radios

Roberto Hincapie, Li Zhang, Jian Tang, Guoliang Xue, Richard S. Wolff, Roberto Bustamante

    Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

    10 Citas (Scopus)

    Resumen

    Cognitive radios allow unlicensed wireless users to access channels that are in the licensed spectrum bands. However, in a wireless network with cognitive radios, when a licensed user becomes active on a channel in a certain area, nodes and links that were using that channel must release it, which will cause traffic failures. Simple and effective recovery schemes are needed to re-allocate available resources for the failed traffic. In this paper, we study the failure recovery in wireless mesh networks with cognitive radios. We formally formulate the corresponding problems as integer linear programming problems. By solving them, we can obtain optimal solutions. Moreover, an efficient distributed heuristic algorithm is presented for fast recovery. Simulation results show that the performance given by our distributed algorithm is close to that of the optimal solutions.

    Idioma originalInglés
    Título de la publicación alojadaProceedings - 2009 IEEE International Conference on Communications, ICC 2009
    DOI
    EstadoPublicada - 2009
    Evento2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Alemania
    Duración: 14 jun. 200918 jun. 2009

    Serie de la publicación

    NombreIEEE International Conference on Communications
    ISSN (versión impresa)0536-1486

    Conferencia

    Conferencia2009 IEEE International Conference on Communications, ICC 2009
    País/TerritorioAlemania
    CiudadDresden
    Período14/06/0918/06/09

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