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Lookup NU author(s): Dr Shouhong Zhu
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The problem of blind linear data-symbol estimation and data detection for the air- interface adopting the wide-band direct sequence code division multiple access multiuser multiplexing technique with the promising short-code configurations has been addressed. The superior interference-suppression ability of the code-constrained minimum output energy multipath- component estimation is utilised to develop three code-aided quasi-maximum signal-to-interference and noise ratio (SINR) algorithms. These algorithms operate in such a way as to maximise approximate measures of the output SINR, each having variations, especially in the adaptive implementation, because of different criteria employed. The 'quasi-maximum SINR' nature is because of the approximations employed. Extensive simulations indicate that all of these algorithms significantly outperform the existing code-aided blind linear algorithms at considerably low computational complexity. Moreover their adaptive versions exhibit very high level of desirable trade-off between convergence speed and steady-state performance at further reduced computational complexity.
Author(s): Zhu S; Constantinides AG
Publication type: Article
Publication status: Published
Journal: IET Communications
Year: 2007
Volume: 1
Issue: 4
Pages: 638-646
ISSN (print): 1751-8628
ISSN (electronic): 1751-8636
Publisher: Institution of Engineering and Technology
URL: http://dx.doi.org/10.1049/iet-com:20060022
DOI: 10.1049/iet-com:20060022
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