Blind source separation based interference suppression schemes for OFDM and DS-CDMA

M. G. S. Sriyananda (), J. Joutsensalo () and T. Hämäläinen ()
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M. G. S. Sriyananda: University of Jyväskylä
J. Joutsensalo: University of Jyväskylä
T. Hämäläinen: University of Jyväskylä

Telecommunication Systems: Modelling, Analysis, Design and Management, 2016, vol. 61, issue 2, No 12, 349-358

Abstract: Abstract In statistical wireless signal processing, extraction of unobserved signals from observed mixtures can be achieved using Blind Source Separation (BSS) algorithms. Orthogonal Frequency Division Multiplexing (OFDM) and Direct Sequence-Code Division Multiple Access (DS-CDMA) can be pronounced as the well established predominant air interface communication techniques. Consequences of an effort taken and counteractive solutions to diminish the undesirable influences encountered within the wireless air interface of those techniques with aid of BSS schemes are disclosed. Filter coefficients for the receiver are ascertained with the support of a set of energy functions and the iterative fixed point rule. Time correlation properties of the channel are taken advantage for BSS. Performance of the algorithm are evaluated using OFDM and DS-CDMA models under slow fading channel conditions with a receiver containing Equal Gain Combining. The importance is that, this scheme can be promoted as a low computationally complex mechanism.

Keywords: Blind source separation; OFDM; DS-CDMA; Slow fading; Downlink (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11235-015-0021-x

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