BLIND CHANNEL TRACKING FOR LONG-CODE WCDMA WITH LINEAR INTERPOLATION MODEL

A new technique for tracking of fast fading channels in long code CDMA is proposed exploiting multipath diversity of mobile channels. Based on a linear interpolation model, the proposed method blindly estimates the channel coefficients at the selected positions within a slot up to a scale factor and tracks the time-varying channel using an interpolation. The unknown scale factor can be resolved using only one pilot symbol which increases the bandwidth efficiency. The proposed method can be implemented using several frontends including the conventional matched filter, decorrelator, and regularized decorrelator. A new identifiability condition is established and the performance of the proposed method is assessed through the mean square error and bit error rate.
Publisher
IEEE
Issue Date
2002-11
Keywords

blind channel tracking; long code CDMA; linear interpolation model

Citation

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on, v.1, pp.694-698

ISSN
1058-6393
URI
http://hdl.handle.net/10203/351
Appears in Collection
EE-Conference Papers(학술회의논문)
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