Performance of OFDM Channel Estimation in Repeater equipped Wireless Systems

It is well-known that, in current wireless OFDM systems, repeaters are equipped with BS for coverage extension in an efficient way. However, repeater equipped OFDM systems can cause some kind of problems. One of them is channel estimation performance degradation at some locations due to the distinct two paths phenomenon. In this paper, we evaluate the performance of OFDM channel estimation in the situation.