Non-orthogonal filter bank multi carrier systems with higher overlap factor filters for 5G communications and beyond Online publication date: Thu, 22-Oct-2020
by Ravi Sekhar Yarrabothu; Usha Rani Nelakuditi
International Journal of Networking and Virtual Organisations (IJNVO), Vol. 23, No. 4, 2020
Abstract: The current 4G long-term evolution (LTE) system has few limitations such as lower spectral efficiency, no support for asynchronous data transfer, high out-of-band emissions. Filter bank multi carrier (FBMC) technique is getting used as one of the 5G waveform modulations to overcome the above mentioned limitations. The objective of this work is to design, simulate and verify the FBMC-based 5G communication system with prototype filters of higher order spreading factors 4, 6 and 8 along with LTE to study the performance in terms of spectral efficiency, out of band emissions, peak to average power ratio (PAPR) and bit error rate (BER) under AWGN and outdoor line of sight (LOS) fading conditions using the Keysight test-bed and tools. The results show that the FBMC with higher order spreading factors resulting in to good spectral efficiency, very minimal out-of-band emissions, comparable BER performance and slightly better PAPR than that of LTE systems.
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