FCC Rejects Cheap/Fast Internet Device
Tech.Luver writes "ABC News reports that a group of technology companies including Google, Microsoft, and Dell, have failed to convince the Federal Communications Commission of the utility of high-speed internet access via television airwaves. The FCC concluded the potential to disrupt consumer image quality was too high, in a statement released Wednesday. 'The technology companies say the unlicensed and unused TV airwaves, also known as "white spaces," would make Internet service accessible and affordable, especially in rural areas and also spur innovation. However, TV broadcasters oppose usage of white spaces because they fear the device will cause interference with television programming and could cause problems with a federally mandated transition from analog to digital signals in February 2009.'"
Interesting the timing of this article given Ofcom's recent approval of Ultra Wide Band for consumer devices in the UK.
http://news.bbc.co.uk/1/hi/technology/6938941.stm
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Ignorant as I am, I'd say all they need to do is to just up the frequency until outside TV spectrum. As an added bonus, all you'd have to do to cook your food would be to place it near your wireless router.
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Anyway, I say the whole broadcast TV thing needs to just die anyway. Seriously, how many people do you know personally who don't have satellite or cable? I know of one person, but that's it.
I think this is the first time I've seen someone on slashdot advocating the elimination of the FREE option and requiring people to pay money for something.
This guy's the limit!
-- This is just like broadband over powerline (BPL). The FCC makes sure the requirements are inadequate, such that there is guaranteed interference with somebody (with Congressional influence). The FCC then quashes it, in order to help it's telco friends.
-- BPL still exists for the moment, as, there is not enough influential pain being relayed to Congress yet. Don't worry, BPL will be quashed.
-- Gotta protect the telco's, so that the commissioners have lucrative future position and employment.
I can see the TV people's point. It's not like those frequencies are a big truck you can just dump stuff on.
Meta will eat itself
Putting wireless internet on the freed-up TV channels is a particularly poor use of the spectrum. Each TV channel is only about 6 MHz wide (4.5 plus some guard space). That would accomodate maybe 50 million bits per second of service, across the propagation range of VHF and UHF, which depending on power and weather, can range from a few hundred meters to several hundred miles. If you use a few hundred watts you could cover a few square miles, but so can the current Wifi channels. Covering a large rural are is impractical as you'd need many watts of power transmitted at the user's end, and only a limited number of users could be handled.
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Wanna fight ? Bend over, stick your head up your ass, and fight for air.
The downlink speed using UHF is quite fast. They didn't mention that the upstream link uses USPS. The rate increase makes this pretty high cost/bit. Secure TCP (letter rate) is 0.41/packet and insecure UDP (postcard) is 0.26/packet.
Intron: the portion of DNA which expresses nothing useful.
When you first said "USPS" I thought "nah, he couldn't be talking about the postal service" but then you said "letter rate", and now I just have to say that I don't fancy the idea of printing all my ACK packets and sending them back. What happened to the paperless office? Obviously it's only paperless if you're using UDP!
I hate printers.
As a non-US citizen, I too hope your government subsides. :P )
(Not a spelling Nazi, just poking you coz you pointed it out
I hate printers.
Check out how much TV spectrum goes unused across the U.S., and not just in rural areas. Unbelievable waste. Does this look like a free-market allocation of resources? Does the FCC realize it is making earnest citizens literally sick with disappointment? How many people would welcome a movement to just seize the airwaves, creating wireless ISPs that don't ask for permission to broadcast? Bring on the interference?
In a perfect world, there'd be pure digital distribution of television series and movies. All content would be streamed on-demand in a high-quality format, with a basic fee covering access to the network and perhaps a low-cost fee per hour of watching (like $.25 per hour) with no interstitial commercial "messages". I'd be very happy with that.
P.P.S. I'm doing Science and I'm still alive.
"The level of signal redundancy (using Viterbi encoding) combined with the forward error correction (FEC) mechanisms introduced in the signal, practically reduce the risk of interference to none."
I'm sorry, but that's just misleading.
In any channel transmitting digital data, you have a certain bit error rate (BER). Using error correction techniques, you can improve the performance of the channel such that the BER is equivalent to that of a channel with much less noise, or much higher transmit power, or much higher antenna gain. Error correction provides gains that you can measure in decibels, just like an increase in transmit power would.
But a dB loss is a dB loss, it doesn't matter if it's due to weather, interference, etc. If interference causes a dB loss over and above what the channel was designed for, you lose more bits than expected, and quality degrades.
If moderation could change anything, it would be illegal.
Thank you for clarifying that relationship. :D