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MIT's MegaMIMO 2.0 promises faster Wi-Fi and longer range

2016-08-29 03:27 by
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Using a phone on a crowded network can be a challenge because WiFi signals interfere with each other and there isn't enough bandwidth on the wireless spectrum to handle all the traffic from the cellphones that are trying to use the spectrum at the same time.

Spectrum crunch is such a big problem that the White House recently announced both a $400 million research initiative and a $4 million global competition devoted to the issue.

A team at MIT's Computer Science and Artificial Intelligence Lab (CSAIL) has developed a solution for this problem called MegaMIMO 2.0. It is as big as a standard router, and consists of a processor, a real-time baseband processing system, and a transceiver board.

MegaMIMO 2.0 is a distributed MIMO system that coordinates the activity of access points (wireless routers, for example) so that signals are not sent over the same frequency at the same time. Eliminating interference permits all of the transmitters in an area to operate more efficiently, transfering data over Wi-Fi more than three times faster than current options, with double the range.

"In today's wireless world, you can't solve spectrum crunch by throwing more transmitters at the problem, because they will all still be interfering with one another," Ezzeldin Hamed, PhD student and lead author on the topic said. "The answer is to have all those access points work with each other simultaneously to efficiently use the available spectrum."

Read more -here-


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