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Cisco Aironet Series 2700/3700 Access Points Deployment Guide
Cisco Aironet Series 3700 Access Point
Figure 59
ClientLink 2.0
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 60
.
Figure 60
Beamforming (constructive and destructive interference)
Figure 61
provides a visual comparison of ClientLink 1.0, using 1 spatial stream, and ClientLink 2.0,
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.