摘要:More and more wireless communication systems are adopting orthogonal frequency
division multiplexing (OFDM) in order to help achieving higher data rates with less
error probability. In the last 3GPP2 conference COFDM been proposed to be the
leading modulation technique in 4G. The main problem facing such systems is
multipath fading; which is mitigated by channel equalization and channel estimation. In
this paper the analysis of the multipath fading channel effect on the performance of
uncoded OFDM systems is shown, where user's mobility and channel time spread in an
indoor environment have been taken into account. Although research studied such
performance however none studied the effect of frequency selectivity and the user
mobility at the same time.