Data Transmission in PL
Via radio waves
- Analog medium
- Digital computer data transmitted using analog transmission (Translations done by NIC and AP)
Frequency and bandwidth (range of frequencies)
- 2.4000 – 2.4835 GHz ? 83.5 MHz bandwidth in USA
Transmission
- 83.5 MHz divided into 3 channels ? 22 MHz each (with 3 MHz guard bands between channels)
- Data capacity of the circuit:
- Number of bits sent on each symbol x symbol rate
- Max symbol rate: depends on bandwidth and SNR
- 22 MHz ? 22 million symbols/second (perfect conditions)