Overview
- 802.11ah (HaLow) standard in 2016
- Focus on indoor-to-outdoor scenario (medium range, max 1 km)
- 915 MHz communication, theoretical 365 Mbps (practical 150 kbps to 8 Mbps)
- Uses star topology with 8191 devices per access point
- Devices are assigned to a group with scheduled spots via TDMA
- Within a slot, CA is used for contention among devices
- Devices not in the group can sleep until their slot