Measured delay distribution in a wireless mesh network test-bed

Najah Abu Ali, Essa Ekram, Ali Eljasmy, Khaled Shuaib

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    31 Citations (Scopus)

    Abstract

    A lot of work has been done to evaluate the real time applications' performance over wireless networks. Some work focused on delay as a performance metric. However, no work studied the delay random behavior over a test-bed which imitates as much as possible actual operative networks. In this paper, we designed and run different experiments over heterogeneous 802.11 Wireless Mesh Network (WMN) test-bed with a scope of studying the delay probability distribution over multihop WMN. We anticipate that by knowing the link delay distribution, we will be able to use this information to design sound algorithms to provide for QoS. For example, designing a partitioning algorithm capable of partitioning multiple end-to-end QoS requirements into link QoS requirements. We designed different experiments to measure the link and end-to-end delays over the WMN test-bed. The measured link delays are used to construct an empirical histogram. Our experiments reveal that irrespective of the number of hops along the paths and type of traffic crossing the link, the empirical histograms almost have same general shapes. The empirical histograms are fitted into different types of standard pdf distributions. We found that the best fits for almost 90% of the empirical distributions are two standard distributions; gamma and logistic.

    Original languageEnglish
    Title of host publicationAICCSA 08 - 6th IEEE/ACS International Conference on Computer Systems and Applications
    Pages236-240
    Number of pages5
    DOIs
    Publication statusPublished - Aug 28 2008
    Events6th IEEE/ACS International Conference on Computer Systems and Applications, AICCSA 2008 - Doha, Qatar
    Duration: Mar 31 2008Apr 4 2008

    Publication series

    NameAICCSA 08 - 6th IEEE/ACS International Conference on Computer Systems and Applications

    Other

    Others6th IEEE/ACS International Conference on Computer Systems and Applications, AICCSA 2008
    Country/TerritoryQatar
    CityDoha
    Period3/31/084/4/08

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Science Applications
    • Control and Systems Engineering

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