A New EM Acceleration Algorithm for Multi-user Detection
Xian Jinlong, Jianwu Li, Yang Yang · 2011
The EM iterative algorithm is commonly used in recent years for missing data, which has the character of easy and popular applicability. But the EM algorithm has a fatal weakness that is slow convergence speed, base on that a new EM acceleration algorithm Quasi-Newton EM is proposed in order to solve this problem. In non-Gaussian noise simulation numerical is carried out, the results show that the proposed algorithm has a good performance, comparing with EM algorithm, and the convergence speed is better than standard EM algorithm.