Analysis and Comparison of Different SC-FDMA Schemes for 3GPP LTE

Single-carrier FDMA (SC-FDMA) is a new kind of FDMA system which was proposed in recent years. It has the same PAPR as single-carrier system and its resource scheduling is as flexible as multi-carrier system. For comparison, the 3GPP LTE uplink scheme DFT-S-OFDM, and our new scheme DFT-S-GMC which is based on DFT and General Multi-Carrier (GMQ are analyzed and discussed in detail. Analysis and simulation results show that DFT-S-GMC is better than DFT-S-OFDM in Multiple Address Interference (MAI) performance. And the complexity of DFT-S-GMC is also reduced by using multi-band filter-banks.