Performance Evaluation of Universal Filter Multi Carrier (UFMC) and Orthogonal Frequency Division Multiplexing (OFDM) with Amplitude Phase Shift Keying (APSK) Modulation

Abstract

Abstract Orthogonal frequency division multiplexing (OFDM) is one of the most important waveform techniques for 4G communications. Despite its many advantages, OFDM has some drawbacks, such as high peak-to-average power ratio (PAPR), sideband leakage, and poor spectrum efficiency. To overcome the previously mentioned shortcomings of OFDM, A novel waveform technique Universal Filter Multi Carrier (UFMC) was introduced as a altered waveform technique for subsequent wireless communication. It is proposed to investigate the performance of the Universal Filter Multi-Carrier (UFMC) system under different modulation schemes. Amplitude phase shift keying is a new modulation technique that is investigated for its ability to minimize the PAPR of the UFMC system and OFDM. APSK has been shown to generate less PAPR than other modulation schemes such as QAM and QPSK, which are commonly, used in LTE communication systems. A comparative analysis is performed between OFDM and UFMC with different modulation schemes, including APSK and it is found that UFMC provides overall better results in terms of PAPR and spectral efficiency compared to OFDM and can be considered as an alternative waveform for 5G communications. The use of filter banks in UFMC helps reduce sideband leakage and improve spectrum efficiency. Additionally, APSK modulation demonstrates its ability to further minimize the PAPR of both UFMC and OFDM systems.