Study on Minimum Mean Square Error of Channel Estimation in CDMA System
Bin Sheng · Journal of Circuits and Systems · 2004
In recent years, there has been considerable interest in the precise analysis of the channel estimation in CDMA systems. In this paper, the lower bound of mean square error in channel estimation is deduced after analyzing the ideal wiener filter. The relationship among mean square error, entropy and mutual information of the channel estimation is also investigated based on the information theory. Finally, the maximum mutual information is presented.