FBMC and UFMC: The Modulation Techniques for 5G

Abstract

Orthogonal-Frequency-Division-Multiplexing (OFDM) is a promising multicarrier-modulation-technique and is an eminent alternative for the fourth-generation wireless communication system (4G), as it offers high spectral efficiency, multipath propagation, the frequency selective fading channels are protected and efficient power efficiency. Yet, OFDM is certainly not a right contender for 5G as it isn't fit for supporting the various applications 5G is going to offer and 4G wireless communication techniques go through from the limitations of High Peak-to-Average-Power-Ratio (PAPR), Cyclic Prefix (CP) and sideband leakage is another limitation of OFDM. Objectives: Our intention is to design an innovative waveform having great spectral-efficacy and less PAPR for 5G Wireless-Communication System. Techniques /Analysis: In this paper, distinctive subcarriers and QAM regulation methods are used to evaluate the PAPR of numerous multicarrier modulation techniques like OFDM, Filter Bank Multicarrier Modulation (FBMC), Universal Filtered Multicarrier (UFMC), etc. Findings: Because of the presence of CP, the spectral-efficacy of OFDM is poor rather than the FBMC and UFMC and consequently can be enriched by FBMC and UFMC. CP can also be eliminated by making use of the independent filters for individual subcarriers and intensification in the subcarriers moderates the PAPR further. Improvements: On comparing various multicarrier modulation techniques like OFDM, FBMC, UFMC, etc. It is concluded that UFMC is an improved waveform technique for future wireless communication technique (5G) having less PAPR and PAPR can be additionally diminished by applying the optimization procedures.