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NetAdmin1
CCNA

join:2008-05-22
reply to jc100

Re: Well

said by jc100:

I guess there would be ways around the blocking of ports (proxy etc) but truth be told, mobile broadband isn't mean to go p2p galore.
Bingo. Hence the reason that the fixed-wireless last mile technologies need to be developed further. Mobile products have always been designed to be light usage mostly because of the technical limitations that constrain the products.

WIMAX is suppose to change that, but this service is too new to know if the problems that EVDO and GSM data services suffer from under high utilization are gone.
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Drilling for more oil is akin to giving a methhead the keys to the meth lab.


funchords
Hello
Premium,MVM
join:2001-03-11
Yarmouth Port, MA
kudos:6
said by NetAdmin1:

WIMAX is suppose to change that, but this service is too new to know if the problems that EVDO and GSM data services suffer from under high utilization are gone.
Yeah, but what happened to the cellular concept? Are the numbers of sites growing with the number of subscribers? (I don't know where to find this data...)
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Robb Topolski -= funchords.com =- Hillsboro, Oregon
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patcat88

join:2002-04-05
Jamaica, NY
kudos:1

2 recommendations

reply to NetAdmin1
said by NetAdmin1:

WIMAX is suppose to change that, but this service is too new to know if the problems that EVDO and GSM data services suffer from under high utilization are gone.
WIMAX will have the exact same problems EVDO and GSM have. All 3 rely on oversubscribtion business models. I belive WIMAX is 18.5 mbitps per 5 mhz channel, EVDO is 3.1 (Rev A) or 2.4 (Rev 0) mbitps per 1.25 mhz channel, and HSDPA is 14 mbitps per 5 mhz channel.

WIMAX may have an advantage in speed and congestion over other standards since WIMAX will not be forced into the small PCS and 800 Cellular bands and have to share channels with legacy standards (GSM/EDGE/CDMA 1x). USA WIMAX bands/spectrum MIGHT be larger and/or more available than PCS/800 bands/spectrum, and thats what provides the illusion WIMAX is better. The analogy is that the car isn't any better or faster than any other car, it just has a sticker on its bumper that lets it drive on a much bigger less congested highway. If you tried to run WIMAX inside 800/PCS, you would have the exact same problems as with EVDO and HSDPA.


funchords
Hello
Premium,MVM
join:2001-03-11
Yarmouth Port, MA
kudos:6

1 edit
Thanks for the tech detail. I was looking for those numbers a while ago.

This bandwidth <scarequotes>crisis</scarequotes> isn't a failure of the oversubscription concept. It's a failure of ISPs to keep up with the current burst of video demand. We've been through this pain before when HTTP started surpassing gopher and usenet -- suddenly systems that handled mostly text were having to pass a lot of graphics.


dfa wimax

@spcsdns.net
reply to patcat88
Sprint has about 100Mhz of spectrum per market, which is technically enough to provide 1Gbps to each site (when 802.16m comes along in a couple years). Sprint won't provide that kind of performance to each user, but they'll have the spectrum to provide far more shared bandwidth than 3G. They'll be way ahead of 3G and be able to compete with cable/dsl with one big advantage... truly mobile data.