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In this paper, a novel approach is put forward to the multiuser channel identification. The approach makes use of the modulation induced cyclostationarity to separate the second order cyclic statistics for every user,with the special features of one subspace for one user, so as to be able to identify individual channels of different users. In order to form a Single Input Two Output (SITO) system, the transmission rate is doubled by repeating at the transmitters. The approach is rather simple, suitable for the multiuser uplink. And the channel identifiability conditions with its proof are included in the paper. And finally the identification algorithm is proposed with simulation results.
In this paper, a novel approach is put forward to the multiuser channel identification. The approach makes use of the modulation induced cyclostationarity to separate the second order cyclic statistics for every user, with the special features of one subspace for one user, so as to The order is form a Single Input Two Output (SITO) system, the transmission rate is doubled by repeating at the transmitters. The approach is rather simple, suitable for the multiuser uplink. And the channel identifiability conditions with its proof are included in the paper. And finally the identification algorithm is proposed with simulation results.