A carrier offset correction scheme based on maximum likelihood (ML) method for the downlink of an orthogonal variable bit rate multicarrier-CDMA (MC-CDMA) scheme in a fast frequency selective Rayleigh fading channel is proposed and discussed. The proposed methodology assumes perfect knowledge of phase offset, whereas an equal gain combining (EGC) scheme is considered for MC-CDMA detection. Results in terms of minimum mean square error of the residual carrier frequency offset will be presented.
"Maximum Likelihood Estimation of Carrier Offset in a Variable Bit Rate Orthogonal Multicarrier CDMA"
REGAZZONI, CARLO;
2003-01-01
Abstract
A carrier offset correction scheme based on maximum likelihood (ML) method for the downlink of an orthogonal variable bit rate multicarrier-CDMA (MC-CDMA) scheme in a fast frequency selective Rayleigh fading channel is proposed and discussed. The proposed methodology assumes perfect knowledge of phase offset, whereas an equal gain combining (EGC) scheme is considered for MC-CDMA detection. Results in terms of minimum mean square error of the residual carrier frequency offset will be presented.
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