Multi-user detection in an MC-CDMA telecommunication system

摘要

A multi-user detection method and device for a receiver in a multi-carrier code division multiple access telecommunication system, each communication to or from a user of the system being coded with a signature, the signal received by said receiver being decomposed into a first plurality of frequency components;The frequency components are subjected to a first filtering matched to the respective signatures of a second plurality of users and to the common or respective responses of the transmission channels associated to said communications to or from said users.;The output of the first filtering is subjected to a forward filtering followed by an estimation of the symbols transmitted to or by the users.;The estimated symbols are subjected to a backward filtering, the output of said backward filtering being subtracted from the output of the forward filtering prior to the estimation.