Motorola Field Tests Wireless Broadband At 300Mbps 138
cft_128 writes "Motorola Labs just finished field testing its new ODFM (Orthogonal Frequency Division Multiplexing) wireless broadband technology that prove it can attain 300Mbps. This is only a test, but it is an order of magnitude faster than the fiber to the premises that Verizon is now starting to offer. They do mention that the final network would only see 20Mbps sustained and 100Mbps peak."
so what does this mean for us? (Score:1, Interesting)
Re:so what does this mean for us? (Score:2, Funny)
Why, Jimmy
spam, spam, spam, spam
spam, spam spam, spam...
Re:so what does this mean for us? (Score:1)
Broadcast or DoS? (Score:1)
daddy: Hey kid, come down, the sky is clear! (...Well, this might explains why the Internet went down for a moment not too long ago...) You probably heard a broadcast storm, a DoS or... dammit, perhaps a worm is seeking the wireless OFDM network trying to infiltrate computers in the area!!!
son: Should I shutdown my Linux toy?
daddy: Don't worry about it but Run Forrest Run and close the Wi
Re:so what does this mean for us? (Score:2)
"Wireless" (Score:3, Interesting)
ODFM???? (Score:5, Informative)
(referring to the text in the article)
Re:ODFM???? (Score:1, Offtopic)
SDFRSPLGB???? (Score:1, Funny)
(referring to the fucktard text in your post)
Re:ODFM???? (Score:1)
Re:ODFM???? (Score:2)
"Orthogonal Frequency Division Multiplexing (OFDM)"
How long until WiLan sues 'em? (Score:4, Interesting)
Re:How long until WiLan sues 'em? (Score:5, Insightful)
That said, OFDM is amazingly elegant and efficient (in use of BW). It just requires the receiver to work harder to demodulate the data. So with a 300MB/s peak rate, you will need a much more powerful processor than 802.11g applications. So don't go looking for this in a portable solution for a long time...
Re:How long until WiLan sues 'em? (Score:2)
On the other hand, the press release claims
"using OFDM on a 20 MHz bandwidth channel with multiple antenna handheld devices".
Re:How long until WiLan sues 'em? (Score:2)
Re:How long until WiLan sues 'em? (Score:2)
Re:How long until WiLan sues 'em? (Score:1)
Re:How long until WiLan sues 'em? (Score:1)
Re:How long until WiLan sues 'em? (Score:2)
Re:How long until WiLan sues 'em? (Score:2)
Free Software Automobile Telemetrics? (Score:5, Interesting)
"..traveling at typical highway speeds (in excess of 100 kilometers per hour or 62 mph)."
With a connection like that you could easily set up some pretty cool homebrew telemetric systems. Maybe have a community database of good restaurants?
"Car - please direct me to the nearest Thai restaurant favored by Slashdot readers who enjoy icefishing..."
Re:Free Software Automobile Telemetrics? (Score:1, Offtopic)
moore is nothing more than a sorry jerk that has something to prove. he just happens to have a camera and some cash. he may be successful, but that doesn't make him less of a lying sack of manure.
of course, that said, i have to give him props for being convincing.
300Mbps ? (Score:5, Insightful)
Re:300Mbps ? (Score:1, Flamebait)
Re:300Mbps ? (Score:2)
I know a guy who is well off. He drives a Hummer to work. He's also VERY technically saavy. Yet, he lives somewhere where he can only get 56k, tops. Should he just move? Well I doubt he'll find an apartment that takes bison.
I dare you to tell him to move just to upgrade his internet connection.
Re:300Mbps ? (Score:2)
Ha! Even if I lived in a Stepford [stepfordwivesmovie.com] (with real non-evil people), I would pack my bags immediately if I had to surf at 28.8k!
Order of Magnitude faster than Fiber? (Score:4, Insightful)
Re:Order of Magnitude faster than Fiber? (Score:2, Insightful)
Re:Order of Magnitude faster than Fiber? (Score:5, Insightful)
> If i have 10 people on a 100Mb cat5 run, they can each get 10 mbps.
If it's switched, and it's between the users, then they can each get 100Mbps to each other. To the "main server", whatever that may be, they do share 100Mbps, though.
> If I have 30 people on a 54mbps wireless connection they can all get 54mpbs.
Wrong. Everyone shares the 54mbps minus overhead. If any of those 30 get over 1Mbps you'll be lucky.
Re:Order of Magnitude faster than Fiber? (Score:3, Insightful)
Obviously you've never tried to manage a large scale switched network! And by large i mean several miles.
No matter how nice your switch is - even uber-expensive Alteon switches - the backplane is NEVER what they say it is. Ever. Ever ever.
I've worked at an experimental isp that delivered 100mbps to the home. I've worked at a testing lab tha
Re:Order of Magnitude faster than Fiber? (Score:1)
Re:Order of Magnitude faster than Fiber? (Score:3, Interesting)
Re:Order of Magnitude faster than Fiber? (Score:1, Informative)
Although this might not be the same as what Verizon is offering, Surewest Broadband has been implementing FTTP in Sacramento, CA which supports 100Mbps, although only 10Mbps is used for Internet traffic (some or mos
Re:Order of Magnitude faster than Fiber? (Score:1)
Re:Marketers? (Score:2)
I thought that's what advertisers and salespeople do.
Re:Marketers? (Score:2, Insightful)
Awesome but... (Score:1, Insightful)
3 Motorola stories in a day? (Score:3, Insightful)
Surprised no one mentioned the new V3 [phonescoop.com] nor the A780 [phonescoop.com].
Re:300 Mbps through the AIR?! (Score:2)
In other headlines (Score:5, Funny)
Many things to consider... (Score:5, Interesting)
There is a second concern that I can think of. If a phone is able to get broadband speed and has a videocamera attached, it could cause privacy problems. Do we really want a new kind of voyer with these devices??
What else could broadband on a phone be used for?? I doubt anyone will use their cell phone as a computer. A phone is first a phone and secondly all other things. Plus, cell phones have such limited battery use times, that I doubt anyone would really use those other features for more than a very limited time.
Uhh, hey man, like, use it for your HOME PC (Score:5, Interesting)
Wireless broadband COULD be used for phones *I guess* but it's more likely to be used for people's home PC's or notebook PC's, at least at first.
Wireless technology has a MUCH better chance at rapid deployment in most areas because all you need to do is set up some antennas - whereas with fiber or other wired networks you have to lay down millions of meters of lines to reach everyone's home.
I believe that it's going to be the method of network access for the future. Cheap deployment, fast, and mobile.
Unless you live in NYC or some other major metropolis, don't expect very high speed internet access within the next 10 years or more if you're waiting for verizon's fiber. But if Motorola deploys it's wireless system on a wide scale, you could see it in half that time.
Re:Many things to consider... (Score:2, Insightful)
Re:Many things to consider... (Score:1)
I use it for my laptop when I'm away from home and as a backup for my main internet connection.
Re:Many things to consider... (Score:3, Informative)
Not sure who you're using, but ATTWS and Cingular charge once, and it doesn't take up airtime. For like $8/mo. I
Re:Many things to consider... (Score:1)
Re:Many things to consider... (Score:1)
Re:Many things to consider... (Score:1)
Right. In addition, OFDM is well known to have a large peak-to-average power ratio. This means it is very difficult to amplify the signal efficiently. The power efficiency of OFDM is very bad and this is one of the current hurdles to get OFDM into mobile battery powered devices.
I will believe it when I see it. OFDM technologies can make many claims about
Re:Many things to consider... (Score:1)
20Mbps or 8? (Score:2)
Re:20Mbps or 8? (Score:1)
Re:20Mbps or 8? (Score:1)
Just what we need... (Score:2)
Isn't that like a car that runs only on water, but doesn't?!
Re:Just what we need... (Score:2)
Marge: "Does anyone really need that much porn?"
Homer: "(salivating noise) Ahhhhhhhh million times faster"
300Mps On Its Own Is Meaningless (Score:5, Informative)
The proper question is "What is the spectral efficiency?"
Spectral efficiency is a measure of the data throughput per unit of bandwidth. It is measured in bits per second per Hertz (bit/s/Hz).
Existing WLANS get around 4-5 bit/s/Hz under ideal conditions. State of the art lab demonstrations get in the range 20-40 bit/s/Hz. To put this in context, 20-40 bit/s/Hz is the equivalent of >400Mbit/s in an existing 22MHz WiFi channel.
So, does anyone know the spectral efficiency of Motorola's system?
Re:300Mps On Its Own Is Meaningless (Score:4, Informative)
The article says they did this in a 20 MHz channel, corresponding to 15 bps/Hz. That's far outside the range I'm used to.
Re:300Mps On Its Own Is Meaningless (Score:1)
MIMO allows multiple channels to be transmitted over the same bandwidth by expoiting spacial dive
Re:300Mps On Its Own Is Meaningless (Score:2)
Re:300Mps On Its Own Is Meaningless (Score:2)
Maybe I'm just an idiot, but wouldn't it be simpler to just use "bps/Hz" or "baud/Hz"? That's one funky looking unit there...
Re:300Mps On Its Own Is Meaningless (Score:2)
Re:300Mps On Its Own Is Meaningless (Score:1)
I also prefer Hertz to cycles as Hertz is an SI unit but cycles is not.
I'm not going to be a unit Nazi and say that either your opinions are wrong. I am of the opinion though that consistent use of SI units comes into its own when carrying units though complex calcul
Re:300Mps On Its Own Is Meaningless (Score:3, Informative)
Baud equals *symbols* per second. Once you start to get into modulations that get multiple bits per symbol, baud != bits per second.
56 kbps modems actually transmit at 8kbaud (7 bits per symbol, 8000 symbols per second), using PCM modulation, instead of the QAM/trellis modulation all the other high speed modems use. 2400 bps modems were 600 baud, 9600 modems were 2400 baud, 14.4 modems were 2400 baud. I believe 28.8 and 33.6 run at 3600 baud, which is about the most you can expect from the analog
Game playing (Score:2)
Other than that I love wireless.
Re:Game playing (Score:2, Informative)
I do, however I see the actual hardware go offline far to frequently, although I suspect it has to do more with the ISP than the equipment.
Better wear a foil helment. (Score:1, Interesting)
Multiply that by a decent sized coverage area, TV dinners, reheated coffee, yesterday's pizza and those pastry things that explode if they're in the microwave for too long, but are stone cold if they're not in long enough.... and you're looking at very little actual usable airtime.
Power consumption issues with mobiles (Score:3, Interesting)
Upside on fiber far higher than the RF (Score:3, Informative)
Re:Upside on fiber far higher than the RF (Score:1)
Your post is modded up informative, but it is not correct, because in the story he is comparing this technology to Verizon's fiber offering and not a generic fiber transmission.
Re:Upside on fiber far higher than the RF (Score:2)
Work/Life Balance (Score:4, Funny)
High Speed VPN access from anywhere, oh joy.
Now what am I going to do when I want to sleep off my hangover on the commuter train?
What does verizon have to do with it? (Score:2)
Kinda OT.... (Score:1)
Jaysyn
*sob* (Score:2)
We've got that beat in Japan (Score:5, Informative)
I suspect that one of the reasons this is available here is the incredible density you find in Tokyo. I'm about 3 blocks away from the local CO. Rural areas probably are not getting these speeds
Of course, the key question is what's upstream from you - right now I'm only pulling down 800Kbps across several BitTorrent downloads so your mileage will definitely vary.
Goofy article (Score:3, Interesting)
We give up to 50mbps for internet... as our bandwidth gets cheaper, we'll be bumping that up to 100mbps, wireless can't hold anything to fiber.. besides, you can't do reliable voice over wireless (latency issues) and certainly not video which we provide as well, more than 5ms of latency and your video stream is toast...
Wireless will never be a reliable triple play provider, which is the holy grail in telecommunications right now.
Re:Goofy article (Score:2)
Are you sure about that? I'm not sure about you, but my cell phone works fine (wireless digital audio) and there are many devices that send audio over WiFi (like the Airport Express). Also I must say watching broadcast HDTV works just great and I've watched many streaming videos over a WiFi connection.
Re:Goofy article (Score:2)
I'm also talking about IP Video which your streaming video would qualify for, but try comparing the quality of that streaming video to a DVD or HDTV. Yeah, you can receive broadcast HDTV but that isn't IP Video, it isn't packetized, which is where the latency kills you. If you get packets arriving a few milliseconds late
And what upstream? (Score:4, Insightful)
When are we going to see decent upstream at the home? 128kbps doesn't cut it. I rarely see any offering at all over 256kbps upstream. OOL offers 1024 but as soon as you begin actually USING it they cap you back to 150 to keep the network from congesting to death.
But Joe McSixpack doesn't care about that, he just wants to grab porn faster and maybe let his kids get on aol and watch some crappy realvideo trash without whining. The ISPs are so paranoid about people running servers on their networks and losing their ability to charge 5000% markup for the same connection for "business" users even though they still block ports like 80 and 25. Woe betide the industry if people realised that 1.5mbps T-1 they've been paying hundreds or thousands a month for since the early 90s is now SLOW.
It's gotten to the point where I've pretty much given up hope of ever seeing a real broadband connection in my lifetime. By the time I can afford something with decent upstream, the idiots in washington [theinquirer.net] will have ISPs so paranoid that everyone will be mandatorily placed behind a NAT and their servers will continually portscan you looking for servers and p2p apps.
Re:And what upstream? (Score:1)
i'm not a fan of the big corps in general. AT&T [att.net] royally screwed me with a crappy DSL connection, pitiful upstream speed, non-documented port-blocking, an abysmal AUP once i started running servers, and a lock-in con
Of course it's really fast. You're alone. (Score:3, Insightful)
You can't be serious (Score:2)
Are you seriously comparing lab's theoretical numbers to something being delivered to end users?
Do you doubt that FTTP can scale higher? What speeds are they pushing over fiber in the lab? No my friend, wireless will always lag behind.
LOS issues, WISP (Score:2)
And
Re:LOS issues, WISP (Score:1)
That is what makes OFDM neat. It works well in multipath environments. LOS isn't a requirement.
fixed wireless (Score:2, Interesting)
RF bandwidth (Score:1)
how much bandwidth does it take, and what what frequencys does it operate on?
sounds cool though, but theres only a limited amount of RF
i want some technical information