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Uplink channel estimation for IMT-DS system

Sheikh, A.U.H. and Faisal, S. and Shah, A. (2001) Uplink channel estimation for IMT-DS system. Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th, 4.

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Abstract

The IMT-DS system is one of the approved 3G radio interface standards which employ RAKE receivers to exploit multipath diversity. This paper discusses a new dimension in DS-CDMA channel estimation, i.e., chip-level adaptive channel estimation. A novel despreader-respreader based channel estimator (DRCE) is proposed to obtain uplink (UL) channel estimates at chip-level which resolves the deficiencies of conventional methods that work at symbol level. The DRCE employs an adaptive filter whose weights are adapted by using an LMS algorithm. The performance of the RAKE receiver with DRCE for an IMT-DS system is evaluated in terms of BER by simulations for pedestrian and vehicular channels



Item Type:Article
Date:2001
Date Type:Publication
Subjects:Computer
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Sheikh, A.U.H. and Faisal, S. and Shah, A.
ID Code:14289
Deposited By:KFUPM ePrints Admin
Deposited On:24 Jun 2008 16:30
Last Modified:12 Apr 2011 13:14

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