AN SVD PLUS VITERBI ALGORITHM FOR MULTIUSER ADAPTIVE BLIND EQUALIZATION OF MOBILE RADIO CHANNELS

A fully adaptive algorithm for multiuser blind channel equalization is presented. The algorithm is based on an adaptive matrix singular valu e decomposition (SVD) for a (virtual) channel identification type oper ation and the Viterbi algorithm for subsequent symbol detection. Unlik e other blind multiuser detection schemes that have recently appeared in the literature, the present algorithm removes multiple access inter ference (MAI) by exploiting the finite alphabet property of the input signals together with channel coding redundancy. The latter is believe d to be a crucial new ingredient for performance in the context of MAI suppression.