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    Power control and multiuser diversity in multiple access channels with two time-scale fading


    Leong, Alex S. and Evans, Jamie S. and Dey, Subhrakanti (2005) Power control and multiuser diversity in multiple access channels with two time-scale fading. In: Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt'05). IEEE, pp. 86-95. ISBN 076952267X

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    Abstract

    We derive the optimal power control strategy to maximize the sum rate of a multiple access channel with two time-scale fading, where transmitters have access to each of the other users' 'slow' fading information and the statistics of the 'fast' fading, but no knowledge of the instantaneous fast fading states. Assuming identical fast fading distributions for all users, it is found that the optimal strategy is to let at most one user transmit, with the user transmitting the one with the 'best' slow fading condition. An example with users undergoing lognormal shadowing and Rayleigh fast fading is considered, and capacity comparisons are made. Simple sub-optimal power control schemes which provide close to optimal performance in certain favorable channel conditions are also proposed and analysed.

    Item Type: Book Section
    Additional Information: Cite as: A. S. C. Leong, J. S. Evans and S. Dey, "Power control and multiuser diversity in multiple access channels with two time-scale fading," Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt'05), 2005, pp. 86-95, doi: 10.1109/WIOPT.2005.40.
    Keywords: Power control; multiuser; diversity; multiple access channels; two time-scale fading;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 14456
    Identification Number: https://doi.org/10.1109/WIOPT.2005.40
    Depositing User: Subhrakanti Dey
    Date Deposited: 25 May 2021 13:30
    Publisher: IEEE
    Refereed: Yes
    URI:

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