An Investigation Into The Effect of Channel Estimation and Interpolation Techniques In Long Term Evaluation System Through Realistic Channel Conditions

Channel estimation is an important technique at receiver’s end in order to combat the effect of noise or interference on the transmitted information. The channel estimation reduces the effect of the channel on signal and recovers the transmitted signal. These estimation techniques depend on the propagation model through which it is travelling. Estimation techniques LS, MMSE, PERFECT performs differently in different scenarios. Techniques like PERFECT and MMSE are complex but are good in performance, whereas LS has less complexity, but its performance is less than MMSE. This paper makes a number of contributions, as well as, deeply discusses the comparison of estimation technique in different realistic channel and further we analyse the effect of variation in interpolation scheme, and transmission diversity of antennas in order to make performance better.