Fractionally spaced blind equalization with low-complexity concurrent constant modulus algorithm and soft decision-directed scheme
نویسندگان
چکیده
The paper proposes a low-complexity concurrent constant modulus algorithm (CMA) and soft decisiondirected (SDD) scheme for fractionally spaced blind equalization of high-order quadrature amplitude modulation channels. We compare our proposed blind equalizer with the recently introduced state-of-art concurrent CMA and decision-directed (DD) scheme. The proposed CMA+SDD blind equalizer is shown to have simpler computational complexity per weight update, faster convergence speed, and slightly improved steady-state equalization performance, compared with the existing CMA+DD blind equalizer. Copyright # 2004 John Wiley & Sons, Ltd.
منابع مشابه
Low complexity concurrent constant modulus algorithm and soft decision directed scheme for blind equalisation - Vision, Image and Signal Processing, IEE Proceedings-
The recently introduced concurrent constant modulus algorithm (CMA) and decision-directed (DD) scheme provides a state-of-the-art low-complexity blind equalisation technique for high-order quadrature amplitude modulation (QAM) channels. At a small cost of slightly more than doubling the complexity of the standard CMA blind equaliser, this concurrent CMA and DD blind equaliser achieves a dramati...
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