Flutterby™! : MIMO

MIMO

2020-02-11 21:43:38.412137+00 by Dan Lyke 0 comments

Unlimited capacity in wireless networks with massive MIMO

MIMO is an acronym for "Multiple Input, Multiple Output" and the technology involves connecting hundreds of small antennas, each with a power of around 10 mW, either in something that can resemble a large computer monitor or distributed across the façade of a building.

All the antennas send a few tens of signals with carefully determined delays. The delays are chosen so that the copies of a signal arrive at the intended receivers at exactly the same instant, but at slightly different times at all other receivers. This gives a strong signal at the intended receiver and only a slight disturbance at all the others. Pilot contamination arises when the delays are to be estimated using signals known as "pilots."

[ related topics: Wireless ]

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