Bit-error-rate performance of lightwave hybrid AM/OFDM systems with comparison with AM/QAM systems in the presence of clipping impulse noise

1996 ◽  
Vol 8 (2) ◽  
pp. 278-280 ◽  
Author(s):  
Qi Pan ◽  
R.J. Green
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Impulse Noise ◽  
Rate Performance ◽  
Ofdm Systems

scholarly journals Design and Analysis of MIMO F-OFDM Systems for 5G and Beyond Wireless Communications

2021 ◽  
Vol 10 (2) ◽  
pp. 203-210
Author(s):  
Sohag Sarker ◽  
◽  
Laila Arzuman Ara ◽  
Tahsin Alam ◽  
Tarun Debnath ◽  
...  
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Channel Coding ◽  
Spectrum Efficiency ◽  
Fir Filters ◽  
Rate Performance ◽  
Ofdm Systems ◽  
Spectrum Utilization ◽  
Modulation Techniques ◽  
Simulation Results

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.

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