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 Frequency shift based multiple access interference canceller for multirate UMTS-TDD systems
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/8157

title: Frequency shift based multiple access interference canceller for multirate UMTS-TDD systems
authors: Gonçalves, L.
Gameiro, A.
keywords: cyclostationary
frequency shift
issue date: 2002
publisher: IEEE
abstract: Direct Sequence Spread Spectrum (DS-SS) signals exhibit cyclostationary properties which imply a redundancy between frequency components separated by multiples of the symbol rate. In this paper we present a Multiple Access Interference Canceller that explores this property and applies to UMTS-TDD. This frequency domain canceller operates in the spreaded signal in such way that the interference and noise at its output is minimized (Minimum Mean Squared Error Criterium). The performance is evaluated in two con gurations: one including the Frequency Shift Canceller (FSC) and the other concatenated with Parallel Interference Canceller(PIC). The results are benchmarked against the performance of the conventional RAKE detector and the conventional PIC detector.
URI: http://hdl.handle.net/10773/8157
ISBN: 0-7803-7589-0
publisher version/DOI: http://dx.doi.org/10.1109/PIMRC.2002.1046517
source: PIMRC 2002: 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
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