OFDM/ IOTA vs. MC/CDMA- IOTA using a New Channel Estimation Method

초록

Classical OFDM modulation using guard interval is well known for its robustness to multi-path time varying propagation channels. OFDM/IOTA modulation is an alternative to it, which has the advantage not to require the use of a guard interval, this leads to a gain in spectral efficiency. In order to reduce the intrinsic ISI caused by the use of the IOTA filter, we adapt a new method to perform channel estimation efficiently. In this paper, we also suggest MC/CDMA-IOTA system for the purpose of comparison with OFDM/IOTA system.