IB-DFE receiver for generalized SIMO DFT precoded filter bank systems in doubly selective channels

Abstract

Recently, a precoded discrete Fourier transform (DFT) filter bank system was proposed in order to obtain a scheme with better spectral localization, low peak-to-average power ratio (PAPR) and complex orthogonality. Such a scheme does not need to use Offset-Quadrature Amplitude Modulation and can be generalized by changing the waveform, while obtaining robustness in high mobility scenarios. Due to its complex orthogonality, most well-known methods of MIMO-OFDM transmission can be used efficiently. In this work, we will explore the generalization of this system using an iterative receiver and investigate the usage of multiple antennas in reception in high-spreading Doppler scenarios.