Channel Estimation Scheme Using Imposed PN

Linear minimum mean square error estimator (LMMSEE) with imposed periodic PN sequence for finite- impulse response (FIR) channel estimation is proposed. Theoretical analysis and computer simulation show that the proposed method are found to exhibit better performance and lower complexity than that of the LS method at SNR values of practical interest. Thus, LMMSEE is a better method in computation complexity and performance when compared with the conventional methods such as LS method and MMSEE method.