Comparison of MUSIC and matched filter delay estimators in DS-CDMA

P Luukkanen,J Joutsensalo

doi:10.1109/pimrc.1997.627002

Comparison of MUSIC and matched filter delay estimators in DS-CDMA

P Luukkanen, J Joutsensalo

https://doi.org/10.1109/pimrc.1997.627002

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Publication Date: Sep 1, 1997

Citations: 10

Affiliation: Nokia (Finland)

#Performance Of Multiple Signal Classification #Multiple Signal Classification + Show 8 more

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Abstract

This paper focuses on the initial code phase estimation, also called acquisition, in the asynchronous multiuser CDMA system. The performance of the subspace-based MUSIC (Multiple Signal Classification) estimator is compared to the conventional matched filter. Simulation results for a communication system with ten users each having a 2-path Rayleigh fading channel and raised-cosine shaped chip waveform are presented. It is shown that the celebrated near-far resistance and the overall performance of MUSIC is maintained only at the signal-to-noise ratios higher than normally realizable in practical systems.

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