Maximum Likelihood Estimation of Carrier Offset in a Variable Bit Rate Orthogonal Multicarrier CDMA

نویسندگان

  • Marco Guainazzo
  • Claudio Sacchi
  • Carlo S. Regazzoni
چکیده

A carrier offset correction scheme based on Maximum Likelihood (ML) method for the downlink of an Orthogonal Variable bit rate Multicarrier-CDMA (MCCDMA) 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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تاریخ انتشار 2003