In SONET/WDM networks, one fiber supports multiple wavelengths and each wavelength supports several low rate tributary streams. "Traffic grooming" then is defined as properly using a SONET add/drop multiplexer (ADM) to electronically multiplex and demultiplex the required tributary traffic patterns with minimal resource cost (wavelengths and ADMs). This paper studies the traffic grooming problem in single hub SONET/WDM networks and extends existing results. We analyze the real deployments, generalize their results, and study practical special cases. We prove that a two-fiber bidirectional line-switched ring (BLSR/2) would never be more expensive than a unidirectional path-switched ring (UPSR) under any traffic pattern. We also present the exact minimum costs of uniform traffic in both UPSR and BLSR/2. We give approximation algorithms for optimal grooming of non-uniform traffic. Finally, we consider how to select the line speeds if there are two different line speeds available.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Practical traffic grooming scheme for single-hub SONET/WDM rings


    Beteiligte:
    Xiang-Yang Li, (Autor:in) / Liwu Liu, (Autor:in) / Peng-Jun Wan, (Autor:in) / Frieder, O. (Autor:in)


    Erscheinungsdatum :

    01.01.2000


    Format / Umfang :

    748321 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Traffic Grooming

    Dutta, Rudra / Harai, Hiroaki | Springer Verlag | 2020


    Traffic Grooming on WDM Rings Using Optical Burst Transport

    Hsueh, Y.-L. / Kim, J. / Su, C.-F. et al. | British Library Online Contents | 2006


    Effective Wavelength Assignment Algorithms for Optimizing Design Costs in SONET/WDM Rings

    Ghafouri-Shiraz, H. / Zhu, G. / Fei, Y. | British Library Online Contents | 2001


    Sparse Traffic Grooming in Translucent Optical Networks

    Shen, G. / Tucker, R.S.T. | British Library Online Contents | 2009


    Dynamic Traffic Grooming in Optical Burst-Switched Networks

    Farahmand, F. / Zhang, Q. / Jue, J. P. | British Library Online Contents | 2005