Research Article
BER Performance of Stratified ACO-OFDM for Optical Wireless Communications over Multipath Channel
Table 1
Major simulation parameters.
| OFDM parameters | IFFT/FFT size | 2048 | Cyclic prefix length | 64 | Sampling frequency () | 100 MHz | Channel delay spread () | 10 ns, 20 ns | Modulation techniques | STACO-OFDM/eU-OFDM | Stratum-1 | Stratum-2 | Stratum-3 | 16-QAM | 8-QAM | 4-QAM | 32-QAM | 16-QAM | 16-QAM | 64-QAM | 64-QAM | 16-QAM | ACO-OFDM | 64, 256, 1024-QAM | DCO-OFDM | 8, 16, 32-QAM | Spectral efficiency | ≈1.5, 2, and 2.5 bits/s/Hz | Bit rate | 145 Mbs, 194 Mbs, 242 Mbs |
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