Maximum-likelihood-based multipath channel estimation for code-division multiple-access systems.

The problem of estimating the channel parameters of a new user in a multiuser code-division multiple-access (CDMA) communication system is addressed. It is assumed that the new user transmits training data over a slowly fading multipath channel. The proposed algorithm is based on maximum-likelihood...

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Publicado no:	IEEE Transactions on communications 49, 2 (2001).
Autor principal:	Ertin, E.
Formato:	Artigo
Idioma:	English
Assuntos:	DS-CDMA. MLE. Alternating projection algorithm. Asymptotic expression. Asymptotic likelihood function. Channel parameters estimation. Code-division multiple-access systems. Digital wireless communication systems. Discrete time channel filter. Expectation-maximization algorithm. Likelihood function. Maximum-likelihood-based multipath channel estimation. Multiuser CDMA systems. Re-parametrization. Simulation. Slowly fading multipath channel. Subspace techniques. Symbol period length. Training data transmission.