Cisco Aironet 2700 Series - 802.11 ac Data Rates and Spatial Streams; Importance of Channel Bonding for Speed; 802.11 ac Wave-1 Data Rates (2 & 3 Spatial Streams)

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Cisco Aironet Series 2700/3700 Access Points Deployment Guide
Cisco Aironet Series 3700 Access Point
Figure 69 Faster Speeds with Newer MCS Rates and Bonding – Up to 433 Mbps on 1 Stream.
Faster speed occurs when you use multiple spatial streams. Newer smart phones may likely support only
1 spatial stream, but higher-end tablets and notebooks will typically support 2 or more spatial streams.
Let us look at speeds when using 2 and 3 spatial streams.
Figure 70 Typical Wave-1 Data Rates @ 2 and 3 Spatial Streams