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    On the Asymptotic Performance of Multiple Antenna Channels with Fast Channel Feedback

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    Author
    Khoshnevis, Ahmad; Sabharwal, Ashutosh
    Date
    2005-10-01
    Abstract
    In this paper, we analyze the asymptotic performance of multiple antenna channels where the transmitter has either perfect or finite bit channel state information. Using the diversitymultiplexing tradeoff to characterize the system performance, we demonstrate that channel feedback can fundamentally change the system behavior. Even one-bit of information can increase the diversity order of the system compared to the system with no transmitter information. In addition, as the amount of channel information at the transmitter increases, the diversity order for each multiplexing gain increases and goes to infinity for perfect transmitter information. The major reason for diversity order gain is a â location-dependentâ temporal power control, which adapts the power control strategy based on the average channel conditions of the channel.
    Description
    Journal Paper
    Citation
    A. Khoshnevis and A. Sabharwal, "On the Asymptotic Performance of Multiple Antenna Channels with Fast Channel Feedback," IEEE Transactions on Information Theory, 2005.
    Published Version
    http://dx.doi.org/10.1109/T-WC.2008.070433
    Keyword
    MIMO; perfect feedback; quantized feedback; diversity-multiplexing tradeoff; power control; More... MIMO; perfect feedback; quantized feedback; diversity-multiplexing tradeoff; power control Less...
    Type
    Journal article
    Citable link to this page
    https://hdl.handle.net/1911/20025
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    • ECE Publications [1468]
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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
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    Site Map