Research Article
BER and PSD Improvement of FBMC with Higher Order QAM Using Hermite Filter for 5G Wireless Communication and beyond
Table 2
Power spectral density of different modulation schemes at 20, 30, 40, and 50 normalized frequency.
| Waveforms | Normalized frequency | fn = 20 | fn = 30 | fn = 40 | fn = 50 |
| OFDM | Power spectral density in (dB) | −22.06 | −29.05 | −31.2 | −33.27 | F-OFDM | −33.94 | −65.5 | −45.63 | −48.66 | WOLA-OFDM | −25.61 | −50.51 | −90.92 | −93.2 | UFMC | −29.65 | −50.51 | −90.92 | −93.2 | FBMC/OQAM with PHYDYAS | −111.1 | −121 | −144.5 | −151.2 | FBMC/QAM with PHYDYAS | −180.7 | −221 | −214.4 | −215.7 | FBMC/QAM with Hermite (proposed) | −319.5 | −323 | −323.2 | −315.8 |
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