Channel Estimation Techniques for LTE Downlink

Abstract

In order to minimize the adverse impact of channel noise one can introduce the equalizers with various optimizing
algorithms at the receiver side to achieve the better performance of the wireless communication system. Thus estimation the
channel will improve the performance of the receiver. Henceforth our aim is to use the adverse impact of channel noise using
LS and MMSE channel estimation in order to reduce the distortion that will help improve performance of the wireless
communication system.Computer simulations show that, in the case where the cyclic prefix is equal to or smallerthan the
channel length, MMSE performs better than LSE but at the cost of computational complexity. MATLAB simulations are used
to evaluate the performance of the studied estimators in terms of Mean Square Error (MSE) for LTE Downlink systems with
SISO.