Title :
Joint channel and carrier offset estimation in a multiuser CDMA system
Author :
Attallah, Samir ; Fu, Hongyi
Author_Institution :
Sch. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA, Australia
Abstract :
We investigate the problem of CDMA multiuser detection in the presence of a small residual carrier offset. We propose, in particular, a method based on the generalized eigenvalue problem for efficiently estimating the channel response and the carrier offset blindly. Simulation results are given to verify the validity of the proposed method.
Keywords :
code division multiple access; eigenvalues and eigenfunctions; multiuser channels; parameter estimation; signal detection; CDMA; carrier offset estimation; channel response estimation; frequency offset; generalized eigenvalue problem; multiuser detection; residual carrier offset; Channel estimation; Detectors; Eigenvalues and eigenfunctions; Frequency estimation; Intersymbol interference; Multiaccess communication; Multipath channels; Multiuser detection; Polynomials; Transmitters;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.804216
