Institution of Engineering and Technology;Stevenage: The Institution of Engineering and Technology
Abstract:
摘要： In signal coherent detection, data-aided (DA) method has high detection accuracy, but unavoidably suffers from a large processing delay. Meanwhile, a decision-directed (DD) method incurs no processing delay, but suffers from error propagation problem. Motivated by the above problems of DA and DD methods, the authors present a novel signal detection algorithm for delay-sensitive applications employing orthogonal frequency-division multiplexing systems. The proposed detection method provides similar detection accuracy to the DA method and incurs no processing delay. This method employs channel estimation followed by linear prediction and interpolation to obtain the channel-state information for symbol detection. To achieve a better prediction performance, they perform the linear prediction on the channel taps in the time domain, and conduct the interpolation using a raised cosine filter. Simulations on physical channel models verify the improvements of the proposed method. 出版者： Stevenage: The Institution of Engineering and Technology 出版日期： 2014-07 出處： IET communications, 2014-07, Vol.8 (10), p.1745-1750 資源來源： Wiley Online Library Open Access 版權： The Institution of Engineering and Technology 版權： 2021 The Institution of Engineering and Technology 版權： Copyright The Institution of Engineering & Technology Jul 2014 識別號： ISSN: 1751-8628 識別號： ISSN: 1751-8636 識別號： EISSN: 1751-8636 識別號： DOI: 10.1049/iet-com.2013.0975
