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Will Cellular Swamp WiFi?
hhutkin writes "Sure, Wi-Fi is great for my home network. But what else can it do? After reading this article, I'm convinced that cellular is becoming more ubiquitous with wireless networking than wi-fi will ever be. Just look at all the devices that are coming on the market using cellular technology. I can send email and pics, browse the web, plus listen to MP3s all on one cellular device. It makes the notion of a hotspot almost meaningless." But 802.11x is high-bandwidth, and often unmetered ...
Cellular will win out, because it can be metered. Companies want to be able to charge per byte (or Kbyte). WiFi doesn't let you do that, and overall WiFi may be regulated to mostly home/SOHO use. While cellular becomes the mobile alternative!
I am no cellular or Wi-Fi expert, but it seems like security is something to consider when mulling over this question. My Wi-Fi network is secured by me, but the cellular network, being a public/private venture, seems to lack the ability for personal protection. Perhaps this is a good thing for my parents, as the cellular network would probably have some sort of built-in controls, but I like to control my own network. Any thoughts or secuirty tidbits that anyone can share would be appreciated.
Cellular access right now is like (early) dialup:
-slow transfers
-disconnects often
-high latency
-expensive
I have a brand new phone (it says 3G and GPS on the back) but if i use any of these features i get charged up the ass!
You have to remember the geograpy of much of the world. In the US, WiFi will never take off outside of cities because of the incredible expense of giving total coverage. Here in the UK, or over in japan however, our population is close to ten times denser, making WiFi a much more attractive prospect. Japanese cell networks have far more transmitters than US networks because of the density of cellular activity, with transmitters often less than 100ft apart, so it's no great leap of the imagination to see those transmitters being supplimented or even replaced by WiFi.
This article reminds me of opposite day. Except for the last sentence.
You see; telecos (in Europe at least) are very, very nervous about 802.11. They paid, literally, billions of dollars for UMTS licenses. Some other poster mentioned a $50/month unlimited plan on GPRS, well, GPRS is really, really slow. UMTS is supposed to be 2 megabit/second, albeit shared with all users in a cell. UMTS cells will however be smaller than conventional GSM cells.
GPRS can be rolled out pretty much instantly using the existing GSM infrastructure. UMTS will need entirely new basestations to put into place. Why build a network with near-100% coverage, if handsets will drop to GSM if necessary? Well, the VERY expensive UMTS licenses require it.
Then comes along wifi.. Speeds of 3 or 10 Mbps. Today. No big network. Free spectrum. Yes, only at hot spots, but where else do you use your laptop? In the mall? In your car? Hardly bloody likely. Hotels, airports, maybe Starbucks. And they ALL have hot spots already! Using the net on a little phone or pda/subnotebook gizmo? You don't need megabits of speed, existing data or GPRS (2.5G) will do.
So 3G is a really big liability. The license is use it or lose it; don't build a network (again, imagine a billion crisp green bills vanishing in thin air) and your other invested billions will never yield any return on investment (a write-off).
mmO2 already took a write-off selling the Dutch O2 branded operator (which will now rebrand to it's *old* pre-O2 brand, telfort). The company was bought for 75 million Euros, and mmO2 wrote off the rest of the company's worth (the billions it put into the UMTS license, which never materialized any revenue so far). The new Telfort says it won't do anything with UMTS.
Show me a device that ordinary people will buy that accesses a service that ordinary people want to use that uses megabit per second speeds AND that can be used anywhere (so, pocketsized, not a big ass laptop). Show me that, and I might be able to get you a very nice consulting gig. There is no killer-app for 3G.
Go wi-fi!
(Though always remember, wi-fi is a commodity, you won't make insane profits (maybe none) and competitors or kiddies can simply jam your signal by using a big ass microwave or other disruptive ISM equipment in the same band..)
SCO employee? Check out the bounty
Cellular networks are run by companies that most emphatically do not have your best interests at heart. These are the same companies that, to pick the most contemporaneous example, spent millions of your talk-time dollars fighting number portability.
But getting soaked on per-byte and per-minute rates isn't the real issue. The bigger issue is that the cellular networks are end-to-end controlled by the telcos. No service flows over their waves or wires without their approval. Nothing happens on "your" handset that they didn't explicitly pre-authorize -- the exact opposite of the Internet.
If you want to experiment with a new idea in networking, and you're on the Internet, just park a machine on the net with an open port, and try it out. You don't have to get anyone's permission.
On the other hand, if you want to try something out on the cellular network, you first have to get "permission" to write software to run on your own damn phone, then you have to get the Service Provider du Jour to agree to send you the bits you're interested in (for a nominal fee, of course, assuming they know what the hell you're talking about at all). For an example of this idiocy, check out the API for BREW (Basic Runtime Environment for Wireless). It's the only API I've ever seen that expressly has a political layer in its networking stack.
802.11b, OTOH, is just Ethernet-like frames over the air (typically used to carry Internet protocol, but can be used for any other Ethernet-y thing). No permission, no politics, no fellating the local telco to give you "permission" to experiment. Just squirt packets out the interface and see what happens. Yeah, it carries data, but where is it written it can't carry voice as well?
Cell phones are darned useful, but believe me, you do not want the cell phone providers to become the dominant force in wireless data transport. They will screw you.
Schwab
Editor, A1-AAA AmeriCaptions
What the article and poster are both missing is that cellular phones and WiFi networks have entirely different scopes of operation.
WiFi is intended for short-range use and provides large amounts of bandwidth (54Mbps) completely unmetered.
Cellular is intended for long-range use and provides small amounts of bandwidth which are typically (although not always) metered by the phone company.
It's the old adage: bandwidth, distance, cost. Pick any two.
Furthermore, while I don't see cellular overlapping in scope with WiFi, I see WiFi overlapping cellular in many areas. WiFi *can* be made long range with the proper equipment, and can replace some of the functionality of cellular.