FCC takes spectrum from auto industry in plan to “supersize” Wi-Fi

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The Federal Communications Commission today voted to add 45MHz of spectrum to Wi-Fi in a slightly controversial decision that takes the spectrum away from a little-used automobile-safety technology.

The spectrum from 5.850GHz to 5.925GHz has, for about 20 years, been set aside for Dedicated Short Range Communications (DSRC), a vehicle-to-vehicle and vehicle-to-infrastructure communications service that's supposed to warn drivers of dangers on the road. But as FCC Chairman Ajit Pai today said, "99.9943 percent of the 274 million registered vehicles on the road in the United States still don't have DSRC on-board units." Only 15,506 vehicles have been equipped with the technology, he said.

In today's decision, the FCC split the spectrum band and reallocated part of it to Wi-Fi and part of it to a newer vehicle technology. The lower 45MHz from 5.850GHz to 5.895GHz will be allocated to Wi-Fi and other unlicensed services.

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