UT%20Wireless%20Project%20Update

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UT Wireless Project Update

• Dewitt Latimer
• Philippe Hanset
• Predrag Radulovic

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Quick Definitions

• WLAN Wireless LAN
• 802.11b WLAN using 2.4 GHz ISM Band
• 11 Mbits/sec maximum throughput
• 802.11a WLAN using 5 GHz U-NII Band
• 54 Mbits/sec maximum throughput
• RF Site Survey
• SNR Signal to Noise Ratio

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Whats In a Name?

• Everyone has heard of Cisco and Lucent.
• Who are Avaya and Agere?

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Scope of UT Wireless Project

• 8 Pilots in early fall 2000.
• Instructed in October 2000 to take campus
  wireless by fall 2001.
• 4.35M project budget approved January 2001.
• Majority of staff already tied up in VolNet
  Upgrade.

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Scope of UT Wireless Project

• 130 buildings covering 15M net assignable sq ft.
• 32K potential users on campus.

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Critical Factors

• User-level authentication against main (LDAP)
  directory service.
• Dynamic, session-based key encryption.
• Intercell roaming.
• Dynamic self registration of users.

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Critical Factors

• Design for 802.11a in 18 months.
• Simultaneous support for 802.11b and 802.11a
  during interim.
• Power over Ethernet (802.3AF).

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Critical Factors

• Tied to existing cost recovery model.
• First refresh geared for 18-24 month cycle.

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Performance vs. SNR

• 802.11b
• Required SNR
• 1 Mbps 4 dB
• 2 Mbps 7 dB
• 5.5 Mbps 11 dB
• 11 Mbps 16 dB

• 802.11a
• Required SNR
• 6 Mbps 11 dB
• 12 Mbps 14 dB
• 24 Mbps 19 dB
• 54 Mbps 28 dB

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Sowhat vendor did we select?
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Avaya AS-2000AE

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Avaya AS-2000AE

• Dual slot architecture for migration from 802.11b
  to 802.11a
• Supports 2.4GHz radios today, 5GHz radio when
  available
• User-swappable radios
• Supports power over Ethernet standard.

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Avaya AS-2000AE

• Ship date Nov 2000,
• Release 2 of software 3/2001
• List price 1700
• UT price of 925
• Works with Lucent/Orinoco cards only!
• Good newsAll vendors use this chipset in their
  laptops.

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Project Status
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Phase I and Phase II
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Project Timeline
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Phase I RF Site Surveys
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RF Site Survey Documentation
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Phase I Circuit Installation
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First Working Installation

• Taylor Law School by May 30th
• Balance of Phase 1 buildings by July 15th.

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Build it and they will come
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Instructional Opportunities

• W.I.S.H. (Wireless Instructional Strategies for
  the Humanities)
• College initiatives
• CBA, Engineering, Architecture, Information
  Sciences, others.

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Research Opportunities

• Center for Excellence in IT
• NSF grants on Wireless Technologies
• I2 grants
• ITSEC (Iberoamerican Science and Technology
  Education Consortium)
• UT-Battelle and SNS

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National Recognition

• Chair of Educause Wireless Workgroup
• White paper on RF Interference
• Discussions of Joint I2/Educause WG
• Presentations
• VPI
• TN IT Symposium/Fall Creek Falls
• I2/Lincoln Nebraska
• I2/Ga Tech

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Partnerships

• Dell
• Wireless labs
• Get Un-Wired Day
• Avaya
• Software client and functionality
• Security Authentication
• 802.11a design and testing

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Applied Applications

• Last mile applications
• Point-to-Point connection to Knoxville College
  (I2 connector)
• Point-to-Point on campus for hard to reach/costly
  buildings.

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Known Issues

• AUP on RF Spectrum Control
• Education on Appropriate Use
• Refresh of Technology
• Emerging Standards

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Thank you QA

• Contact us
• dewitt_at_utk.edu
• wireless_at_utk.edu
• Check the project at
• http//wireless.utk.edu
• http//volnet.utk.edu/wireless