OFDM Versions (Cont.)
12-Mbps version
- Groups data into sets of 48 bits
- Transmit OFDM symbol using QPSK (2 bits per symbol)
- 48 bits x 250 KHz x 2 bits ? 12 Mbps
18-Mbps version
- Groups data into sets of 72 bits; uses QPSK
- 72 bits x 250 KHz x 2 bits ? 18 Mbps
24-Mbps version
- Groups data into sets of 96 bits
- Transmit OFDM symbol using QAM (4 bits per symbol)
- 96 bits x 250 KHz x 4 bits ? 24 Mbps