Datasheet

4
Datasheet
802.11ac Technology
Initial 802.11ac Wave 1 SU-MIMO (Single-User,
Multiple Input, Multiple Output) technology allows an
earlier-generation AP, such as the UniFi AC Pro AP, to
communicate with only one client at a time.
802.11ac Wave 2 MU-MIMO (Multi-User, Multiple Input,
Multiple Output) technology allows a Wave 2 AP, such
as the UniFi WiFi BaseStation XG, to communicate with
multiple clients at the same time – signicantly increasing
multi-user throughput and overall user experience.
MU-MIMO Assuming the same conditions, a Wave 2
radio provides up to 75% improvement
1
beyond a Wave1
radio. This improvement increases wireless performance
and/or serves more clients at the same performance level.
4x4 Spatial Streams At any single time, a Wave 2 radio
can communicate with the following MU-MIMO clients:
• four 1x1 clients
• two 2x2 clients
• one 2x2 client and two 1x1 clients
• one 3x3 client and one 1x1 client
Real-World Performance Combining three times the
number of 5GHz radios and four times the associations
per radio, the UniFi WiFi BaseStation XG delivers an order
of magnitude more performance
1
than a typical 802.11ac
Wave 1 AP.
Client Compatibility For optimal performance, use
MU-MIMO clients. SU-MIMO clients will also benet and
gain up to 10-20% greater performance when used with
the UniFi WiFi BaseStation XG.
¹ Actual performance values may vary depending on environmental and
installation conditions.
² Actual numbers may vary depending on environmental and installation
conditions.
Application Scenarios
For ultra high density environments, such as an outdoor
music festival, where there are numerous clients in a
relatively small space, we recommend the UniFi WiFi
BaseStation XG.
Wave 1 and Wave 2 APs offer 28 independent
(non-overlapping) channels: three for the 2.4 GHz band
and twenty-ve for 5 GHz, including DFS channels.
When you use the 2.4 GHz band in a high-density
location, you encounter self-interference and channel
saturation. When you use the 5 GHz band, you can deploy
smaller cells (coverage areas), so you can support more
clients in any cell that deploys more than one AP.
With the advantages of MU-MIMO technology and 4x4
spatial streams, the UniFi WiFi BaseStation XG can support
more than triple the number of users
2
per radio than a
typical Wave1 AP.
Recommended Maximum Number Per Radio
70 Users
UniFi AC Pro AP
UniFi WiFi BaseStation XG
0
50 100 150 200 250 300 350 400 450 500 Users
250 Users
The UniFi WiFi BaseStation XG has three client radios,
so it can support up to 750 users as its recommended
maximum.
Theoretical Maximum Number Per Radio
125 Users
UniFi AC Pro AP
UniFi WiFi BaseStation XG
500 Users
0
50 100 150 200 250 300 350 400 450 500 Users
The UniFi WiFi BaseStation XG has three client radios, so it
can support up to 1500 users as its theoretical maximum.
For more information, go to:
ubnt.link/UniFi-UAPs-High-Density
Single-Client Aggregate Throughput
56%
Improvement
UniFi AC Pro AP
UniFi WiFi BaseStation XG
0
50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800
850
900
950
Mbps
600 Mbps
940 Mbps
10-Client Aggregate Throughput
238%
Improvement
130 Mbps
UniFi AC Pro AP
UniFi WiFi BaseStation XG
440 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
100-Client Aggregate Throughput
900%
Improvement
UniFi AC Pro AP
UniFi WiFi BaseStation XG
300 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
30*
* Mbps