Frequency and time dimension joint Wiener filter based channel estimation algorithm for LTE system
Juan Deng · Digital Communication · 2009
Various channel estimation algorithms based on reference signals were compared,and a channel estimation algorithm applying to LTE system was introduced.At first,the LMMSW-based algorithm was used for Wiener filter in frequency domain.Then,the values after the first filtering in frequency dimension was used to achieve the second filtering in time dimension.Simulation results show that this method can effectively reduce the channel estimation MSE and improve the performance of BER but not add more complexities,so it has practical applications.