Discussion
What is a smart antenna in a mobile network?
Answer: C
A smart antenna forms beams towards wanted users and nulls towards interferers, raising capacity by allowing the same channel to serve several users in different directions. It is an adaptive array applied to cellular service. Frequency selection, power saving and self diagnosis are all features some equipment has, but none of them is what the term denotes. Spatial reuse is the commercial reason the technology was adopted.
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