GFDM/OQAM implementation under Rician fading channel

Future wireless applications demand a high data rate per user, low latency, spectral efficiency and high connection density. One of the contenders for 5G, Generalized Frequency Division Multiplexing (GFDM), seems to serve the next generation wireless needs due to its attractive properties when compared to the existing cyclic prefix orthogonal FDM (CP-OFDM). Nevertheless, due to the inherent non-orthogonal nature of the scheme, GFDM may introduce intersymbol and intercarrier interference (ISI/ICI). For better spectral efficient transmission with improved orthogonality, we explored in this article the well known Offset Quadrature Amplitude Modulation (OQAM) multicarrier signaling technique as applied to the GFDM system. In particular we investigated the GFDM/OQAM system model under Rician-K fading channel conditions providing the corresponding analytical expressions. The model performance is evaluated in terms of the Symbol Error Rate (SER) and the results are seen to improve upon conventional GFDM.