The Analysis and Simulation of Improved Linearly Interpolative Channel Estimation in LTE System

Abstract

In the previous study, we propose a method to calculate the linear phase factor, and then use it to find the new linear interpolation filter coefficients. This new interpolation filter coefficient can improve the effect of 1-D linear interpolation. But this paper limit the pilot arrangement which is comb-type, and the distance between two pilots is a power of 2. In this paper, we adapt this method for channel estimation in the 3GPP-LTE. This method still has good effect in the LTE even the distance between two pilots is not a power of 2.