Better wifi through local FM radio stations

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Slow and fluctuating wifi signal may seem like a mystery, but there is actually a very logical explanation: when two conflicting networks are available in the same space, they interfere with each other. This causes particular problems in densely populated urban buildings where the neighbor upstairs is watching Netflix while someone downstairs attempts to browse the net. Hoping to solve this problem, a group of PhD students at Northwestern University have found a way to mitigate the competing networks using frequency modulation (FM radio) — the system is called Wi-FM.

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