QoS provisioning by cross-layer feedback control

G. Panza, S. Grilli, Esa Piri, Janne Vehkaperä

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    2 Citations (Scopus)

    Abstract

    Next-Generation Networks (NGNs), comprising for example, B4G and 5G cellular systems, will support Quality of Service (QoS) over a heterogeneous wired and wireless IP-based infrastructure. A relative model of service differentiation in DiffServ architecture is a scalable solution for delivering multimedia traffic. However, the dynamic nature of radio channels makes it difficult to achieve the target quality provisioning working separately at the IP and lower layers, as in the classical approach. This work describes an IP cross-layer scheduler able to support a Proportional Differentiation Model (PDM) for delay guarantees also over wireless. The key idea is to leverage feedbacks from the lower layers about the actual delays experienced by packets in order to tune at run-time the priority of the IP service classes in a closed-loop control. The objective is to implement a PDM on the whole at the network interface, as relevant for the end-users. A simulation analysis demonstrates the prominent improvements in reliability and robustness of the proposal with respect to both the classical and the open loop approaches. Considerations on the required functionality and possible deployment scenarios highlight the scalability and backward compatibility of the designed solution.
    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publicationIEEE 21st Symposium on Communications and Vehicular Technology in the Benelux, SCVT 2014
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Number of pages6
    ISBN (Electronic)978-1-4799-8030-7
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA4 Article in a conference publication
    Event21st IEEE Symposium on Communications and Vehicular Technology in the Benelux, IEEE SCVT 2014 - Delft, Netherlands
    Duration: 10 Nov 2014 → …

    Conference

    Conference21st IEEE Symposium on Communications and Vehicular Technology in the Benelux, IEEE SCVT 2014
    Abbreviated titleIEEE SCVT 2014
    CountryNetherlands
    CityDelft
    Period10/11/14 → …

    Keywords

    • cross-layer
    • closed-loop control
    • QoS
    • wireless

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