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Cisco Aironet Access Point Deployment Guide
Figure 50: High Gain Antenna (AIR‐ANT2480V‐N) with Cover Removed
802.11n, Spatial Streams, and Beamforming
For a video on the fundamentals of spatial streams, see the following URL:
http://www.cisco.com/en/US/netsol/ns767/index.html
MIMO, which refers to a radio system that has multiple separate receive and transmit paths, is at the heart of 802.11n. MIMO systems are described by the number of transmitters and receivers in the system. For example, "two by one" or 2x1 refers to a system with two transmitters and one receiver. (See Figure 51.)
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