Authors : Ravi Sekhar Yarrabothu, Narmada Kanchukommula and Usha Rani Nelakudi
Abstract: Currently, the mobile industry is working towards 5G, as the deployments of 4G LTE-advanced is happening across the world. About 5G research needs to address the existing OFDM based LTE problems such as high PAPR, spectral loss. Universal Filtered Multi Carrier technique (UFMC) can be considered as a candidate waveform for 5G communications because it provides robustness against Inter Symbol Interference (ISI) and Inter Carrier Interference (ICI) and suitable for low latency scenarios. In this study, Kaiser filter is used instead of standard Dolph-Chebyshev for UFMC based waveform to provide better power spectrum and to avoid spectral leakage. In this study, UFMC system is simulated using MATLAB Software, a comparison study for Dolph-Chebyshev and Kaiser filters is performed and the results are presented in terms of power spectrum density analysis, complementary cumulative distribution function analysis and adjacent channel power ratio analysis. The simulated results shows a better power spectral density and low PAPR for UFMC (Kaiser based Window) when compared with UFMC (Dolph-Chebyshev) and conventional OFDM.
Ravi Sekhar Yarrabothu, Narmada Kanchukommula and Usha Rani Nelakudi, 2018. Performance Analysis of Universal Filtered Multi-Carrier (UFMC) Waveform for 5G Cellular Communications Using Kaiser Filter. Journal of Engineering and Applied Sciences, 13: 5576-5582.