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How is the data rate calculated in fixed WiMAX based on OFDM physical layer?
Answer:
Data rate is the rate at which data is transmitted over the air and is measured in Mbps.
Raw data rate = Nsc * bm * Cr /Ts;
Where Nsc is the number of data subcarriers(here 192 for OFDM),
bm is coded bits per sub-carriers
Cr is ratio of input bits to output coded bits
Ts is the symbol duration
For BPSK 1/2, Maximum data rate will be (192*1*1/2)/(11.8 microsec) = 8.13 Mbps.
For 64QAM 3/4, Maximum data rate will be (192 * 6 * 3/4)/(11.8) =73.2 Mbps.
Raw data rate = Nsc * bm * Cr /Ts;
Where Nsc is the number of data subcarriers(here 192 for OFDM),
bm is coded bits per sub-carriers
Cr is ratio of input bits to output coded bits
Ts is the symbol duration
For BPSK 1/2, Maximum data rate will be (192*1*1/2)/(11.8 microsec) = 8.13 Mbps.
For 64QAM 3/4, Maximum data rate will be (192 * 6 * 3/4)/(11.8) =73.2 Mbps.
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