Wireless Physical Medium Specification
802.11 defines 3 physical media
- Infrared
- 1Mbps using range 850nm to 950nm.
- 2Mbps using range 850nm to 950nm.
- Direct sequence spread spectrum
- 7 channels, each with a data rate of 1Mbps or 2 Mbps can be used.
- Operates in 2.4GHz ISM band.
- Frequency hopping spread spectrum
- Operates in 2.4GHz ISM band.
- Details are still being worked on.