An uplink hybrid multiple access scheme for wireless communication systems

Abstract

Both orthogonal frequency division multiplexing (OFDM) and single-carrier (SC) with frequency division multiple access (FDMA) have been regarded as a possible solution for improving the performance of future generation wireless communication systems. OFDM can better exploit the frequency diversity gain while SC-FDMA is less sensitivity to non-linearity of amplifier with lower peak-to-average power ratio (PAPR). In this paper, a new hybrid multiple access scheme is proposed in order to combine the advantages of both OFDM and SC-FDMA schemes, while the effects of both schemes on the realistic system assumptions of the practical high power amplifier (HPA) model and adaptive modulation/coding (AMC) technique are considered. Our simulation results have demonstrated the effectiveness of the proposed scheme and the conclusion is given.