Multiuser detector based on constant modulus arrays applicable to MIMO systems

This paper proposes a novel blind multiuser detection scheme which can be applied for MIMO systems. Even though all algorithms employed are basically blind, the proposed scheme can not only separate each user's signal but also achieve high transmission performance for each user without a priori information of a channel and transmit sequence. Especially, a correlation-based algorithm is proposed in order to avoid ill-convergence which sometimes happens in blind systems. Finally, performance of the proposed scheme is verified by computer simulation.