Design aspects and Performance analysis of Multicarrier Waveform contenders of 5G and beyond Wireless Networks

Abstract

Abstract The next generation wireless network has to cope with the diversified requirements like high data rate, improved quality of service, heterogeneous traffic, low latency and high reliability in the limited available spectrum. With the objective of enhancing the spectrum efficiency and providing the diverse services, the design of air interface needs to be considered. The waveform to be implemented at the physical layer in 5G must be able to perform in high dense networks with high throughput. The key challenge in selecting the modulation waveform is that it must be flexible, spectral efficient and compatible with the service required. In this paper various design parameters of most suitable multi carrier waveform: Filtered Orthogonal Frequency Division Multiplexing (F-OFDM), Universal Frequency Division Multiplexing (UFMC), Filter Bank Multi Carrier (FBMC), and Generalized Frequency Division Multiplexing (GFDM) have been investigated and analyzed. Parameterized waveforms are simulated and performance analysis on the basis of Bit error rate (BER) and Power Spectral Density (PSD) is presented. In addition to this the compatibility and complexity of the modulation technique in different 5G use cases is elaborated.