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Title: Kod bölüşümlü çoklu erişim (CDMA) iletişiminde Gauss olmayan sönümlü kanal kestirimi için Pearson Sistemi'ne dayalı gözü kapalı kaynak ayrıştırma yöntemi
Other Titles: Pearson system-based blind source separation for estimating non-Gaussian fading channels in CDMA communication
Authors: Kalkan, Olcay
Altınkaya, Mustafa Aziz
Publisher: Institute of Electrical and Electronics Engineers Inc.
Abstract: In this work, a Pearson System based-blind source separation method is used for detecting the signal coming to a mobile user which is subject to multiple access interference in a CDMA downlink communication. Considering some fading channel measurements showing that the fading channel coefficients may have an impulsive nature, these coefficients are modeled with an a-stable distribution whose shape parameter a takes values between 1.8 and 1.9. These a values show that the distribution resembles a Gaussian distribution but has a more impulsive nature. Simulation studies show that the conventional MMSE receiver fails in this impulsive fading scenario. Both the independent component analysis (ICA) method using the conventional hyperbolic tangent score function and the Pearson System-based ICA are successful in estimating the channel coefficients and the proposed Pearson System-based ICA method performs faster.
Description: IEEE 12th Signal Processing and Communications Applications Conference
ISBN: 0-7803-8318-4
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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