Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/7658
Title: Novel algorithms in wireless CDMA systems for estimation and kernel based equalization
Authors: Vlachos, Dimitrios
Advisors: Hadjinicolaou, M
Al-Raweshidy, H
Keywords: Carrier offset;Channel;Telecommunications;Non-linear models;Matlab
Issue Date: 2012
Publisher: Brunel University School of Engineering and Design PhD Theses
Abstract: A powerful technique is presented for joint blind channel estimation and carrier offset method for code- division multiple access (CDMA) communication systems. The new technique combines singular value decomposition (SVD) analysis with carrier offset parameter. Current blind methods sustain a high computational complexity as they require the computation of a large SVD twice, and they are sensitive to accurate knowledge of the noise subspace rank. The proposed method overcomes both problems by computing the SVD only once. Extensive simulations using MatLab demonstrate the robustness of the proposed scheme and its performance is comparable to other existing SVD techniques with significant lower computational as much as 70% cost because it does not require knowledge of the rank of the noise sub-space. Also a kernel based equalization for CDMA communication systems is proposed, designed and simulated using MatLab. The proposed method in CDMA systems overcomes all other methods.
Description: This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.
URI: http://bura.brunel.ac.uk/handle/2438/7658
Appears in Collections:Electronic and Computer Engineering
Dept of Electronic and Computer Engineering Theses

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