Combined terminal and network measurement for bottleneck localization

Pekka Perälä, Marko Jurvansuu, Jarmo Prokkola

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

    Abstract

    When a user experiences a poor quality of service (QoS) in a converged network environment, the operators or ISPs need to locate the bottleneck, i.e. to localize which part of the end-to-end (E2E) network path causes the degradation. We present a novel multipoint measurement system that gathers performance information not only from links in the network path, but also from the end devices. In wireless domain, this enables to separate the radio access network and fixed network segments. The measurement method is also applicable to pure fixed line networks. The system is able to perform one-way measurements and even break the E2E delay into one-way link-to-link components, which gives clear benefit over traditional round-trip time (RTT) measurements. The system was verified with laboratory 3G/HSPA (High Speed Packet Access) measurements that revealed a performance bottleneck in the studied 3G network. We also show measurement results in a live Wi-Fi city area network.
    Original languageEnglish
    Title of host publicationProceedings of the 4th International Conference on Testbeds and research infrastructures for the development of networks & communities, TridentCom 2008
    PublisherAssociation for Computing Machinery ACM
    Number of pages7
    ISBN (Print)978-963-9799-24-0
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication
    Event4th International Conference on Testbeds and research infrastructures for the development of networks & communities, TridentCom 2008 - Innsbruck, Austria
    Duration: 18 Mar 200820 Mar 2008

    Conference

    Conference4th International Conference on Testbeds and research infrastructures for the development of networks & communities, TridentCom 2008
    Abbreviated titleTridentCom 2008
    CountryAustria
    CityInnsbruck
    Period18/03/0820/03/08

    Keywords

    • QoSMeT
    • end-to-end
    • HSPA
    • 3G
    • WLAN
    • GPS

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