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    Two-level MMSE relay strategy for an AF wireless relay network

    Date
    2012-10-01
    Author
    Lee, Kanghee
    Kwon, Hyuck M.
    Xiong, Wenhao
    Kim, Hyunggi
    Feng, Shuang
    Park, Hyuncheol
    Lee, Yong H.
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    Citation
    Kanghee Lee; Kwon, H.M.; Wenhao Xiong; Hyunggi Kim; Shuang Feng; Hyuncheol Park; Lee, Y.H., "Two-level MMSE relay strategy for an AF wireless relay network," Communication, Control, and Computing (Allerton), 2012 50th Annual Allerton Conference on , vol., no., pp.1653,1658, 1-5 Oct. 2012 doi: 10.1109/Allerton.2012.6483420
    Abstract
    This paper presents optimal amplify-and-forward (AF) relay amplifying matrices based on the minimum mean square error (MMSE) criterion for a cooperative AF wireless relay network consisting of a one-source-one-destination node pair and two-level N relay nodes. During data transmission, power is constrained at the source node, at the relay nodes in the first and the second levels, and at the destination node. In addition, this paper considers the case that power is intentionally not constrained. Hence, for the no-power constraint example, a positive scaling factor is employed to meet the target signal-to-noise ratio (SNRTGT) at the destination node. With the derived optimal relay amplifying matrices, bit error rate (BER) of the wireless relay network under both power and no-power constraint is simulated.
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    URI
    http://dx.doi.org/10.1109/Allerton.2012.6483420
    http://hdl.handle.net/10057/6072
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