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3G MIMO
3G MIMO describes MIMO techniques which have been considered as 3G standard techniques.
MIMO, as the state of the art of Intelligent antenna (IA), improves the performance of radio systems by embedding electronics intelligence into the spatial processing unit. Spatial processing includes spatial precoding at the transmitter and spatial postcoding at the receiver, which are dual each other from information signal processing theoretic point of view. Intelligent antenna is technology which represents smart antenna, multiple antenna (MIMO), self-tracking directional antenna, cooperative virtual antenna and so on.
== Technology ==
Spatial precoding of intelligent antenna includes spatial beamforming and spatial coding. In wireless communications, spatial precoding has been developing for high reliability, high rate and lower interference as shown in the following table.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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