Smart antennas use spatial diversity technology, which puts surplus antennas to good use. MIMO makes antennas work smarter by enabling them to combine data streams arriving from different paths and at different times to effectively increase receiver signal-capturing power. MIMO technology takes advantage of multipath behavior by using multiple, smart transmitters and receivers with an added spatial dimension, to dramatically increase performance and range. In the past, multipath caused interference and slowed down wireless signals. With multipath, transmitted information bounces off walls, ceilings, and other objects, reaching the receiving antenna multiple times via different angles and at slightly different times. MIMO technology takes advantage of a natural radio-wave phenomenon called multipath. For optimal performance and range, both the station and the AP must support MIMO. In order to implement MIMO, either the station (mobile device) or the access point (AP) needs to support MIMO. All wireless products with 802.11n support MIMO, which is part of the technology that allows 802.11n to reach much higher speeds than products without 802.11n. Multiple-Input Multiple-Output (MIMO) technology is a wireless technology that uses multiple transmitters and receivers to transfer more data at the same time.
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