Cancellation of loop interference with exponential profile using autocorrelation method in OFDM based systems

Abstract

This paper discusses the use of the autocorrelation method introduced in A. Hazmi et al. (2002) to cancel multi-tap loop interference with exponential profile in digital terrestrial broadcasting using relays. It was shown that the method can cancel efficiently the coupling between the transmitter and the receiver antennas in the relay station when one tap loop model is considered. Here we modify the autocorrelation method to deal with multi-tap loop with exponential profile. Analytical and experimental results are presented to verify the advantages and the limitations of the method in such environment. Bit error rate simulation results are also considered in AWGN and Rayleigh static channels cases