Allied Telesis AT-WNU300N - Manual (Page 20)

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AT-WNU300N - IEEE802.11b/g/n 2T2R Wireless Fast USB adapter - Installation Guide
Appendix B: Radio Bands
Allied Telesis’s AT-WNU300N IEEE802.11b/g/n 2T2R Wireless Fast USB
adapter is capable of operating in the 2.4GHz (IEEE 802.11b/g/n).
IEEE 802.11 n standard provides a major improvement in the speed at which
data can be transferred over a wireless network. The amount of data being
passed over most networks is increasing with many more large files, including
photos, video clips (and videos), etc. being transferred.
IEEE 802.11 n standard uses Multiple Input Multiple Output (MIMO)
exploiting multipath propagation; that increases the data rate by using a
technique known as spatial division multiplexing. The data is split into a
number of spatial streams and these are transmitted through separate
antennas to corresponding antennas at the receiver. Increasing the spatial
streams you get a greater utilization of the available bandwidth.