Fig 1.
Schematic of PD-NOMA waveform.
Fig 2.
Proposed system model.
Table 1.
Simulation parameters of the proposed work.
Table 2.
Baseline methods and parameter configurations.
Fig 3.
PAPR analysis of PD-NOMA for 512 subcarriers.
Fig 4.
PAPR analysis of PD-NOMA for 256 subcarriers.
Fig 5.
PAPR analysis of PD-NOMA for 128 subcarriers.
Fig 6.
BER analysis of PD-NOMA for 512 subcarriers.
Fig 7.
BER analysis of PD-NOMA for 256 subcarriers.
Fig 8.
BER vs. SNR of PD-NOMA with 512 subcarriers under imperfect channel estimation (20% error).
Results demonstrate the robustness of the proposed GGAC method under realistic, non-ideal operating conditions.
Fig 9.
BER vs. SNR of PD-NOMA with 512 subcarriers under imperfect channel estimation (30% error).
Results demonstrate the robustness of the proposed GGAC method under realistic, non-ideal operating conditions.
Fig 10.
BER performance of PD-NOMA with 512 subcarriers under imperfect SIC conditions, illustrating the robustness of the proposed method when evaluated in more realistic and complex system environments.
Fig 11.
PSD analysis of PD-NOMA for 512 subcarriers.
Fig 12.
PSD analysis of PD-NOMA for 256 subcarriers.
Fig 13.
SINR vs. SNR of PD-NOMA waveform.
Fig 14.
PAPR vs. number of NOMA users for PD-NOMA waveform.
Fig 15.
Scalability of PAPR reduction techniques as the number of NOMA users increases from 2 to 12.
Fig 16.
Constellation diagram of PD-NOMA waveform.