Code-timing estimation for CDMA systems with bandlimited chip waveforms.

Code-timing estimation for CDMA systems with bandlimited chip waveforms.

In this paper, we present a novel code-timing estimator for uplink asynchronous direct-sequence code-division multiple-access systems utilizing bandlimited chip waveforms. The proposed estimator requires only the spreading code and training of the desired user. We start from a maximum likelihood (ML...

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Publicat a:IEEE Transactions on wireless communications 3, 4 (2004).
Autor principal: Rensheng Wang
Format: Article
Idioma:English
Matèries:
Cramer-Rao bound analysis.
DS-CDMA systems.
Gaussian process.
Bandlimited chip waveforms.
Channel estimation.
Code synchronisation.
Code-timing estimation.
Covariance matrix.
Direct sequence code division multiple access.
Intersymbol interference.
Iterative methods.
Maximum likelihood approach.
Multipath fading channels.
Multiple-access interference.
Optimization.
Parameter estimation.
Reparametrization techniques.
Spreading codes.