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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/92302


    Title: Blind Capon-like adaptive ST-BC MIMO-CDMA receiver based on constant modulus criterion
    Authors: Chern, Shiunn-Jang;Cheng, Ming-Kai;Chao, Po-Sun
    Contributors: 淡江大學電機工程學系
    Keywords: Blind Capon receiver;MIMO-CDMA system;LCCM;Generalized sidelobe canceller;RLS algorithm;constrained optimization
    Date: 2013-12
    Issue Date: 2013-09-28 14:51:29 (UTC+8)
    Publisher: Maryland Heights: Academic Press
    Abstract: In this paper, we present a new Capon-like blind receiver based on linearly constrained constant modulus (LCCM) criterion for the multiple-input multiple-output (MIMO) antennas system along with space–time block code (ST-BC) using direct-sequence code division multiple access (CDMA) modulation technique. A time-varying channel model with generalized sidelobe canceller (GSC) associated with the recursive least squares (RLS) algorithm is implemented to reduce the complexity of receiver design. In our derived algorithm, the parameter of constant modulus, α, relating to the desired user power is updated adaptively via stochastic gradient algorithm to track user’s amplitude variation. Also we prove theoretically that in the two-branch filter bank receiver design the weight vector of one branch can be updated simply using the other one, which has been obtained with our proposed CM-GSC-RLS algorithm, with simple pre-calculated transform. Hence computation complexity of the proposed adaptive blind receiver can be further reduced significantly. Via intense simulations it reveals that our proposed scheme has robust performance against the user’s acquisition inaccuracies comparing with current available algorithms.
    Relation: Digital Signal Processing 23(6), pp.1958-1966
    DOI: 10.1016/j.dsp.2013.08.003
    Appears in Collections:[電機工程學系暨研究所] 期刊論文

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