Window-based UFMC technique for 5G systems

Abstract

In this paper, we investigate the universal filtered multi-carrier system (UFMC) for 5G and subsequent connections with the aid of the MATLAB package. It can be considered that the UFMC technology provides an advantage against inter-symbol interference (ISI) as well as inter-carrier interference (ICI) and low latency. The proposed system is simulated and analyzed in terms of error rates, the complementary cumulative distribution function (CCDF), peak-to-average power ratio (PAPR), error vector magnitude (EVM). In more specific, this paper shows a comparison of two UFMC systems, one with Dolph-Chebyshev filter and the other with Kaiser filter. Obtained results indicate that the performance of the UFMC with Kaiser is quite better than UFMC with Dolph-Chebyshev. Kaiser filter is employed in place of UFMC-based Dolph -Chebyshev to achieve better spectral energy and also to prevent leakage of the spectra. The obtained results also show the enhancement in the EVM and the power spectral density (PSD) criteria, e.g., Kaiser filter enhances the EVM by almost 0.2%. Furthermore, in contrast to applying the Dolph-Chebyshev window in UFMC, the Kaiser window can help in the decrease of PAPR for UFMC.