Title:

CDMA wireless systemwith blind multiuser detector, Journal of Telecommunications and Information Technology, 2006, nr 1

Creator:

Homer, John ; Leong, Wai Yie

Subject and Keywords:

independent component analysis ; code division multiple access ; blind source separation

Description:

In this paper we present an approach capable of countering the presence of multiple access interference (MAI) in code division multiple access (CDMA) channels. We develop and implement a blind multiuser detector, based on an independent component analysis (ICA) to mitigate both MAI and noise. This algorithm has been utilized in blind source separation (BSS) of unknown sources from their linear mixtures. It can also be used for estimation of the basis vectors of BSS. The aim is to include an ICA algorithm within a wireless receiver in order to reduce the level of interference in CDMA systems. This blind multiuser detector requires less precise knowledge of the channel than does the conventional single-user receiver. The proposed blind multiuser detector is made robust with respect to imprecise knowledge of the received signature waveforms of the user of interest. Several experiments are performed in order to verify the validity of the proposed learning algorithm.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Date:

2006, nr 1

Resource Type:

artykuł

Format:

application/pdf

DOI:

10.26636/jtit.2006.1.355

ISSN:

1509-4553

eISSN:

1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności