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krisi
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re: FCC chair looks to break Wi-Fi traffic jam
krisi   1/10/2013 11:41:14 PM
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so how is exactly the WiFi spectrum jam proposed to be solved? I don't see a single GHz number in the article...RF spectrum is finite so what is canceled or re-located? Kris

Bert22306
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re: FCC chair looks to break Wi-Fi traffic jam
Bert22306   1/11/2013 12:25:27 AM
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I had the same question. The way this FCC is attempting to solve the problem is to grab spectrum from TV broadcasters, for purposes like this or to expand cellular service. Genachowski wants to take over 100 MHz of spectrum away from broadcasters, i.e. everything above Channel 31. It's not clear how that will pan out, because theoretically it would be "voluntary." That approach would impact TV big time, if you're one who uses over the air signals (as I do). Internet distribution of TV would help, perhaps, unless the networks suddenly stop providing content over the Internet. I would object if the FCC "forced" me into a subscription scheme, with this sort of spectrum-grab solution. A cynic would say that's what the FCC is trying to do.

daleste
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re: FCC chair looks to break Wi-Fi traffic jam
daleste   1/11/2013 3:23:07 AM
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I agree. The article was way too vague. Kind of like everything the government is telling us. They promise to make things better but only take away more of our freedom.

junko.yoshida
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re: FCC chair looks to break Wi-Fi traffic jam
junko.yoshida   1/11/2013 2:11:18 PM
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The spectrum will be in the 5Ghz range. FCC will unveil more details later this month, I believe.

DrQuine
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re: FCC chair looks to break Wi-Fi traffic jam
DrQuine   1/15/2013 4:12:46 AM
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My home WiFi is running at 2.4 GHz and 5 GHz. If new frequencies are added we will need to buy new SmartPhones, iPads, and new wireless routers. Ideally, the new (faster) frequencies will attract new technology users and allow the legacy systems to operate in a less cluttered space at the old frequencies.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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