Bluetooth Media Access Control
Uses Frequency Hopping Spread Spectrum (FHSS)
- Available frequency range (2.4000-2.4835) divided into 79 separate 1-MHz channels
- A data burst transmitted using one channel, next data burst uses the next channel, and so on.
- Channels changed based on a sequence and established by the slave and the master prior to the data transfers
- 1,600 channel change per second
- Also used to minimize interference
- A noisy channel avoided eventually
Not compatible with 802.11b
- Potential interference problems (especially if many Bluetooth devices present close to .11b devices)