A novel blind multiuser detection algorithm in antenna array system

A pre-processing blind multiuser detection algorithm based on the least squares constant modulus (P-LSCMA) in antenna array system is proposed in this paper. At first, the signals received from every antenna are used to correlate with the conjugation of the DOA vector of the expected user, and then, the pre-processed signals are applied to the LSCMA. We simulated and compared the proposed algorithm with the conventional LSCMA. Simulation results show that the proposed algorithm is superior to LSCMA.