802.11 in the 2.4 GHz and 5 GHz Unlicensed Bands
The 5 GHz Unlicensed Band
- More bandwidth than in the 2.4 GHz band, so between 11 and 24 non-overlapping channels
- Allows many nearby access points to operate on non-overlapping channels
- Or, some access points can operate on two channels
- They serve some clients with one channel, some with the other
- This allows them to serve more clients with good throughput