An adaptive scalable multiuser-OFDM system for multimedia transmission over fading channels

Ahmed Muthana M. Nadhim, Jianhua He, Jiangtao Xi, Zong Kai Yang

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

    2 Citations (Scopus)

    Abstract

    In this paper, an adaptive scalable multiuser-OFDM system was proposed for multimedia transmission over fading channels. The proposed adaptive algorithm can adapt according to the channel status information of each user's channel status. This algorithm is dynamically changes according to the user's channel changes; this can keep fixed QoS at the physical layer. Another predefined QoS for different sessions and services to be provided for different users. This QoS can be guaranteed by multimedia scalability. Scalability can adapt to the service requirements, in terms of transmission data rate and bandwidth. As a result, a robust multimedia transmission scheme is achieved by providing fix QoS for the end users in multiuser environment, by fixing QoS in the physical layer by the bit and power adaptation technique and also in service layer by scalability techniques. Furthermore, space diversity technique are used to decrease the effect of frequency selective multipath effects in broadband wireless channels.

    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Information Technology
    Subtitle of host publicationCoding and Computing (ITCC'05)
    EditorsH. Selvaraj, P.K. Srimani
    PublisherIEEE
    Pages40-45
    Number of pages6
    ISBN (Print)0769523153
    DOIs
    Publication statusPublished - 2005
    EventITCC 2005 - International Conference on Information Technology: Coding and Computing - Las Vegas, NV, United States
    Duration: 4 Apr 20056 Apr 2005

    Publication series

    NameInternational Conference on Information Technology: Coding and Computing, ITCC
    Volume1

    Conference

    ConferenceITCC 2005 - International Conference on Information Technology: Coding and Computing
    CountryUnited States
    CityLas Vegas, NV
    Period4/04/056/04/05

    Keywords

    • Adaptive systems
    • Multimedia systems
    • Fading
    • Scalability
    • Physical layer
    • adaptive algorithm
    • Heuristic algorithms
    • Bandwidth
    • Robustness
    • requency diversity

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  • Cite this

    Nadhim, A. M. M., He, J., Xi, J., & Yang, Z. K. (2005). An adaptive scalable multiuser-OFDM system for multimedia transmission over fading channels. In H. Selvaraj, & P. K. Srimani (Eds.), Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'05) (pp. 40-45). (International Conference on Information Technology: Coding and Computing, ITCC; Vol. 1). IEEE. https://doi.org/10.1109/ITCC.2005.65