The lscm algorithm and subspace approach for blind multiuser detection
Zhao Chun-ming · Journal of China Institute of Communications · 2003
The constant modulus algorithm(CMA) is a blind algorithm. It is applied in the array processing、equalization and multiuser detection widely. The least square CMA is a popular CMA because of its global convergence and stability. But its performance is not superior when the SNR is low. In this paper, we combine the LSCMA with the subspace approach and propose the 慙SCM_SUB?algorithm. Simulation results show that the proposed LSCM_SUB algorithm is superior to the LSCMA especially in the low SNR.