Sensitivity of the optimal parameter settings for a LTE packet scheduler

I. Fernandez-Diaz, R. Litjens, C.A. van den Berg, D.C. Dimitrova, K. Spaey

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    Abstract

    Advanced packet scheduling schemes in 3G/3G+ mobile networks provide one or more parameters to optimise the trade-off between QoS and resource efficiency. In this paper we study the sensitivity of the optimal parameter setting for packet scheduling in LTE radio networks with respect to various traffic and environment aspects. For our investigations we consider a reference packet scheduling algorithm containing elements of proportional fairness and packet urgency to support mixes of real-time and non-real-time traffic. We present extensive simulation results showing the impact of traffic characteristics (like file size distribution, traffic mix) and environment conditions (regarding e.g. multipath fading and shadowing) on the optimal parameter setting. Although, in some cases, efficiency gains of about twenty percent can be achieved by proper tuning of the scheduling parameters, the overall view from our investigations is that a single, robust setting of the parameters can be determined which provides near optimal trade-offs under almost all practically relevant conditions.
    Original languageUndefined
    Title of host publicationProceedings of the 71th IEEE Vehicular Technology Conference, VTC Spring 2010
    Place of PublicationUSA
    PublisherIEEE Computer Society
    Pages1-6
    Number of pages6
    ISBN (Print)978-1-4244-2518-1
    DOIs
    Publication statusPublished - May 2010
    Event71th Vehicular Technology Conference, VTC Spring 2010 - Taipei, Taiwan, Province of China
    Duration: 16 May 201019 May 2010
    Conference number: 71
    http://www.ieeevtc.org/vtc2010spring/

    Publication series

    Name
    PublisherIEEE Computer Society
    ISSN (Print)1550-2252

    Conference

    Conference71th Vehicular Technology Conference, VTC Spring 2010
    Abbreviated titleVTC Spring 2010
    CountryTaiwan, Province of China
    CityTaipei
    Period16/05/1019/05/10
    Internet address

    Keywords

    • METIS-276741
    • EWI-19160
    • CR-C.2
    • IR-75342

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