Frequency domain channel estimation for asynchronous CDMA signals

Document Type

Conference Proceeding

Publication Date

1-1-2001

Abstract

Channel estimation, particularly delay estimation in asynchronous CDMA channel, is essential for most receivers. The correlated time domain data sequence will become asymptotically uncorrelated in frequency domain. By taking Discrete Fourier Transform (DFT) of the received signals, we can take advantage of this asymptotical property to simplify the estimation algorithm. The proposed scheme can jointly estimate the path delay and the complex channel response with lower computational complexity. Even with such simplified channel estimation, performance results are shown to be better.

Identifier

0034856874 (Scopus)

Publication Title

IEEE International Conference on Communications

ISSN

05361486

First Page

2515

Last Page

2519

Volume

8

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