Cisco Aironet 3700 Series Deployment Manual page 44

Cisco Aironet Series 3700 Access Point
Figure 59
With beamforming technology, changing the timing of two transmitters creates a stronger signal for the
receiver, e.g, a client device. This is referred to as constructive interference. Sometimes, however, the
opposite happens and the signals cancel each other out. This is called destructive interference. Refer to
Figure
Figure 60
Figure 61
using 3 spatial streams. Unlike the AP 3500, the AP 3600 provides multiple spatial streams using four
transceivers for even greater performance. AP 3600 can beamform to all 802.11a/g and 802.11n 1, 2 and
3 spatial stream clients. The signal is x3 as each stream is beamformed.
Cisco Aironet Series 2700/3700 Access Points Deployment Guide
44
ClientLink 2.0
60.
Beamforming (constructive and destructive interference)
provides a visual comparison of ClientLink 1.0, using 1 spatial stream, and ClientLink 2.0,