Fourier Based Adaptive Waveform

Marwa Chafii, Jacques Palicot, Rémi Gribonval, Faouzi Bader

Abstract: The single carrier-frequency domain equalization (SC-FDE) scheme and the orthogonal frequency division multiplexing (OFDM) system have complementary performance benefits that make it hard to choose one or the other. This paper proposes an alternative waveform called Fourier-based adaptive waveform (FAW), which adapts the time-frequency tiling of the modulated signal to the frequency fading properties of the environment. A performance comparison based on peak-to-average power ratio and bit error rate shows that the proposed scheme achieves a good trade-off between SC-FDE and OFDM.