| The use of Wireless
networks in Education |
- by Kevin Wyzkiewicz |
What is wireless?
"Wireless"
is often used to refer to everything from cell phones
to Palm Pilots, but it simply describes a process in
which data is transmitted over electromagnetic waves.
So what's the difference between wireless networks in
a University setting and your cell phone service? Each
device conveys information in a different format or
protocol; for example, a cellular phone uses the Wireless
Application Protocol (WAP) and the Wireless University
uses a variation of the 802.11 protocols. Although both
protocols provide you with mobility, using your laptop
allows you greater flexibility because of a laptop's
larger screen and keyboard, and ability to run a wide
range of applications and perform complex functions.
Another up and coming wireless protocol that is worth
mentioning is the Bluetooth
technology. This may not be a replacement for the 802.11
standard that most University’s use, but it may pose
a threat in the future. Bluetooth is used more today
as a way of linking different personal devices together.
Many manufactures are utilizing the technology including
Apple computer who has endorsed
the technology and is currently using it in their
latest version of Macintosh Operation System called
Jaguar.
How does wireless work?
Devices called Access Points (AP) are connected
to the regular wired network on campus, access points
broadcast a radio signal and the wireless card in your
laptop picks up this signal. Your laptop communicates
with the access point and the data is conveyed to the
network.
Wireless In a University setting
Today’s wireless technologies are not intended to replace
hard-wired networks, instead they are used to enhance
and make connecting more flexible for its users. At
this time there are many Colleges and University’s utilizing
wireless technologies. The wireless trend is evident.
It is spreading to more and more campuses. Hands down,
from my research Carnegie
Mellon was the pioneers with wireless on campus
and continues to be the leader. They have created what
they call ?a href="http://www.cmu.edu/computing/wireless/">Wireless
Andrew?Wireless Andrew is the name they call their
wireless network. I will talk more about Andrew in following
paragraphs.
In a recent interview here at Saginaw
Valley State University (SVSU) with the Vice president
of instruction and Executive Director of IT, the wireless
option here at SVSU was brought up. Executive Director
Ken Schendler said, “SVSU would not benefit from a wireless
network? The main reason being that most of the students
at SVSU commute to campus, and because of this, students
would not be around to take advantage of the flexibility
of the cordless connection. It would not be cost effective
to the University. Ken did state that the University
is looking into a cellular phone option for students.
In some additional investigation I have found other
University’s currently offering cellular phone options
to students at drastically reduced prices. Because of
this cellular companies are feeling the repercussion
and in some case are adjusting their prices to compete
with the University student cellular market.
Wireless Andrew at Carnegie Mellon
Wireless
Andrew, the high-speed wireless infrastructure installed
at Carnegie Mellon University, is the largest installation
of its type anywhere. Started as a research network
in 1994 to support Carnegie Mellon's wireless research
initiative, "Wireless Andrew" has been dramatically
expanded since its conception. Wireless Andrew has been
installed in many of the academic and administrative
buildings and will soon cover all academic and administrative
buildings on the Carnegie Mellon campus.
Wireless Andrew builds on the university's wired network
infrastructure, which currently provides 10 Mbps and
100 Mbps Ethernet service. To provide high-speed wireless
service to the campus, Lucent WaveLAN equipment was
installed. This equipment uses a direct sequence spread
spectrum radio to provide a raw data rate of 2 Mbps.
The equipment is 2.4 GHz, IEEE 802.11 Ethernet compatible
technology from Lucent.
Top Five Most Wired Colleges and Universities
The survey is based on a wide range of criteria, including
broadband access in dorm and classrooms; whether or
not computers are required for incoming freshman; the
presence of wireless Internet connectivity anywhere
on campus; the ability to add and remove classes via
the Web; and how much free Web space is allotted to
each student.
1. Carnegie Mellon
With more than 9,000 computers and workstations on
campus, the most wired school in the nation, not surprisingly,
is Pennsylvania's Carnegie
Mellon. If you want a computer science degree, CMU
should be one of your strongest contenders. Among graduate
CS programs, CMU tied with UC Berkeley for third nationally
(according to US News & World Report). In the specialty
area of computer engineering, CMU ranked first.
2. University of Delaware
All the dorm rooms and all the classrooms are wired
in this model of the wired university. Despite its high
tech infrastructure, the University
of Delaware is a gorgeous, Georgian style campus
with that old-tyme New England feel.
3. New Jersey Institute of Technology
NJIT (has been ranked
America's most wired public university for the past
three years, and for good reason. First off, Web masters
should rejoice, for NJIT offers more than 100MB of personal
Web space to all students. Want to learn to become a
Web master? NJIT offers online courses in Web design,
so you don't even need to live in New Jersey to take
advantage of them.
4. Indiana University Bloomington
One hundred percent of the dorm rooms at
Indiana University are wired, ensuring a frenzy
of file sharing and online gaming. Wireless access is
also granted on an unlimited basis, and students are
offered up to 50MB of personal Web space as well as
more than 100MB of network file space.
5. Dartmouth College
When Reverend Eleazar Wheelock founded Dartmouth
in 1769, he predicted that the college would some day
be equipped with a blazing, fat pipe to serve rich Web
content. Actually, that's not true, but it is a fact
that Dartmouth is the only Ivy League school to make
it into the top five most wired colleges list. Though
Dartmouth didn't shine in the area of wired dorm rooms,
100 percent of classrooms are wired and all incoming
freshman are required to own a computer. Moreover, most
every administrative task, from adding and dropping
classes to applying, can be undertaken via the Web.
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