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SBC, previously known to many of us in Sacramento as Pac Bell, made a recent announcement noted in an article by Network World Fusion, that they were adding "…managed Wi-Fi services for schools and hospitals to enable those institutions to converge voice and data traffic onto a single wireless network."
SBC, citing data from EduVentures, a U.S. educational consulting firm, said more than 110,000 public schools combined spend nearly $6. billion a year on technology. Of that, about $500 million is spent on wireless technologies, but that is expected to quadruple by next year, SBC says.
I believe the implications of this article are significant. First, even if EduVentures' forecast is less, the amount to be spent still could be between $1-$ billion and that represents just one industry, education. A sustainable trend is usually preceded by a threshold amount, which, I believe is represented by this forecast. Second, for small schools or small school districts, the SBC announcement represents a possible outsourcing that up to this point didn't exist, at least, not for the Sacramento area. Lastly, some of the Wi-Fi standards are just now being ratified and ramped up for faster speeds and better security, both critical to expanding Wi-Fi to schools. It will be interesting to see how SBC packages their pricing since what was not mentioned in the article was any approvals by a state public utilities commission (PUC), such as California's PUC.
In this next section, I plan to talk about some of the terms mentioned since this article is from a technology trade publication. Wi-Fi stands for wireless fidelity a term coined and copyrighted by the Wi-Fi Alliance, an industry sponsored organization that certifies the interoperability of IEEE 80.11-based wireless equipment. IEEE stands for the Institute of Electrical and Electronic Engineers and they are the group that created a whole series of wireless specifications based upon the original Ethernet protocol, IEEE 80..The Ethernet protocol is what everyone, and I mean internationally, is using if they want to access or be a part of the Internet. So Wi-Fi technology is about high-frequency wireless local area networking (WLAN) and because its origins are from Ethernet, it also uses the Ethernet protocol.
The series of wireless specifications are 80.11a, 80.11b, 80.11g and more recently 80.11i. The fact is there are even more specifications in the 80.11 alphabet soup but I think these are the more important ones at this point in time. The 80.11b spec was actually the first real marketing success. The 80.11b technology "operates in the .4 GHz range offering data speeds up to 11 megabits per second", mbps. (A quick side note Mbps represents megabytes per second and mbps represents megabits per secondthe difference being a magnitude of 8, significant when used in data transmissions.) Most computer systems today, if they are using wireless technology, are using the 80.11b specification. The 80.11a technology provides up to 54 mbps in the 5 GHz range. The 80.11g technology offers wireless transmission over relatively short distances at up to 54 mbps in the .4 GHz range. Note that the 80.11b spec is compatible with the 80.11g since they both operate in the same high-frequency range. This means, in theory, if you are using an 80.11g access point, a laptop with 80.11b wireless capability can communicate through that access point. I mention in theory because current 80.11g products are ahead of the ratified specification (which should happen this summer). Lastly, the 80.11i specification, which is still a work-in-progress, has to do with improved security.Works Cited
Duffy, Jim."SBC Turns Up Wi-Fi for Schools, Hospitals".The Edge Network World Fusion, June 1, 00.http//www.nwfusion.com/edge/news/00/061sbcwifi.html
"Wi-Fi".whatis.com All Categories/Networking/Security, April 8, 00. http//whatis.techtarget.com/definition/0,,sid_gci88865,00.html
"Wi-Fi Overview".Wi-Fi Alliance, 00.http//www.weca.net/OpenSection/why_Wi-Fi.asp?TID=#The_Wi-Fi_Technology
"80.11 Learning Guide".Wireless LAN Info Center/Wireless LAN News TechTarget, March 5, 00.http//searchnetworking.techtarget.com/infoCenter/originalContent/0,4,sid7_gci88815,00.html#quickstart
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