Decision-feedback based least square blind multiuser detection algorithm via antenna arrays
Hongliang Fu · Journal of Chongqing University of Posts and Telecommunications · 2005
A decision-feedback based least squares constant modulus blind multiuser detection algorithm (DFB-LSCMA) using antenna arrays is proposed in this paper. It uses the equalization output of every antenna in the antenna array to correlate with the conjugation of the DOA of the expected user to form the decision, then use the error between the decision and the output of the detector to alternate the coefficients of the multiuser detector. Simulation results show that the proposed DFB-LSCMA algorithm is superior to conventional LSCMA, especially with low SNR.