Design and Analysis of MIMO F-OFDM Systems for 5G and Beyond Wireless Communications
Sohag Sarker1, Laila Arzuman Ara2, Tahsin Alam3, Tarun Debnath4

1Sohag Sarker Assistant Professor, Department of Information and Communication Engineering (ICE), Pabna University of Science and Technology, Bangladesh.
2Laila Arzuman Ara, MSc, Majoring Data Science, Military Institute of Science and Technology (MIST), Dhaka, Bangladesh.
3Tahsin Alam, B.Sc. (Engineering) Student, Department of Information and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh.
4Tarun Debnath*, Lecturer, Department of Information and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh. 

Manuscript received on July 16, 2021. | Revised Manuscript received on July 27, 2021. | Manuscript published on July 30, 2021. | PP: 203-210 | Volume-10 Issue-2, July 2021. | Retrieval Number: 100.1/ijrte.B62740710221| DOI: 10.35940/ijrte.B6274.0710221
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Abstract: F-OFDM (Filtered-OFDM) is a flexible waveform that has been considered suitable for 5G and beyond systems for its improved spectrum utilization, moderates PAPR, low OOB emission, multiple asynchronous sub-band transmission, and high robustness to frequency selectivity. It can attain a desirable balance between frequency and time localizations for narrow bandwidths. It is also MIMO friendly. In this paper, a comprehensive design and analysis have been made to evaluate the performance of MIMO (4×4) CP-OFDM and F-OFDM systems for message bits transmission using several digital modulation techniques (16-QAM, 16-PSK, 16-DPSK, 64-QAM, 64-PSK, and 64-DPSK), RA channel coding, different windowed (Hanning, Hamming, Blackman, Blackman-Harris, RRC) sinc FIR filters for length N = 513, and MMSE signal detection technique. From MATLAB based simulation results, it is observed that F-OFDM reduces spectrum leakage thus enhances spectrum efficiency than conventional CP-OFDM. F-OFDM based system offers lower BER (Bit Error Rate) performance than CP-OFDM based system. 
Keywords: OFDM, F-OFDM, MIMO, FIR Filter, RA coding, OOB, PAPR, BER, MMSE.