Wireless LINC Initiative - IEEE€¦ · Wireless LINC Coverage For more information, contact TomÐ...
Transcript of Wireless LINC Initiative - IEEE€¦ · Wireless LINC Coverage For more information, contact TomÐ...
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Wireless LINC InitiativeDewayne HendricksTetherless Access
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Historical Perspectives
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As fast as it gets
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First Premises• First comes a technology
• As time passes it becomes more accessible/affordable
• “Good Enough” is acceptable for most folks
• More then we know is always happening under our ‘radar screens’
• Wireless is one of our technologies which is most akin to magic (Clarke’s 3rd Law)
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Telegraph - 1830’s
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From ‘Foot Speed to ‘Light Speed’
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Early “Wire Head”
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First signal across Atlantic - 1901
Cornwall,England
St. Johns,New Foundland
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Wireless Commercial Service started in 1903
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Early “Wireless Heads”
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Spectrum Treated as Open Commons
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The Titanic Disaster
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Impact of Titanic Disaster
• Interference in the radio spectrum became an issue
• Resulted in formation on FCC in 1934
• Spectrum locked into a property model ever since
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Today
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From ‘Light Speed to ‘Warp Speed’
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Amateur Radio Service Lessons & Experiences
• Packet radio effort started around 1981
• Based on early ARPA/DARPA work
• Low cost interface device (TNC) - $300
• Dynamic routing
• 56 Kbps hardware by 1986
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Amateur Radio Service Lessons & Experiences• Global packet radio networks in place by
1987 using either AX.25 or TCP/IP protocols
• Bandwidth increased by using Part 15 H/W and homebrew
• Mesh networks in place by 1991 and MANs connected by wired Net by 1995 (ampr.org)
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Amateur Radio Service Conclusions
• Wireless networks can be built in a cooperative manner where the whole is greater than the parts
• Using spectrum as a commons can work through use of simple rules
• Innovation occurs when driven by needs
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Wi-Fi Arrives
• Everyone becomes a Ham!
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The Road to Spread Spectrum
• “Poisson, Shannon and the Radio Amateur”, John Costas, 1959 <http://tinyurl.com/d5bdo>
• Showed that ‘broadband’ communications was superior to ‘narrowband’ in order to reduce QRM
• Findings started the road to the FCC Spectrum Spectrum NOI in 1981
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FCC Actions
• FCC Spread Spectrum NOI, Docket 81-413, 1981
• FCC Amateur Radio Spread Spectrum NOI and NPRM, Docket 81-414, 1981
• Experimental work with AMRAD http://www.amrad.org
• Part 15 and 97 Spread Spectrum Rules, 1985
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Unlicensed Roadmap
• The road begins with SS NOI in 1981
• SS R&O in 1985 starts the engines
• First equipment appears in 1987
• Other countries adopt unlicensed SS and it goes global
• IEEE 802.11 Committee forms
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Unlicensed Roadmap
• U-PCS service adopted
• Almost ten years before first standard, 802.11 appears
• U-NII service adopted
• 802.11/WiFi appears
• “SuperFi” appears
• 802.11a/g appears
• 802.16/WiMAX appears
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U-NII Band Detail
• Proposed by Apple in 1995
• Spectrum for community networking
• Attributes: long range (20+ mi), high speed (20 Mbps+)
• 300 MHz allocated in 1997
• Hardly anyone familiar with this history
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Unlicensed Wireless Conclusions
• Wireless networks can be built in a cooperative manner where the whole is greater than the parts
• Contrary to many expectations, the networks perform ‘good enough’
• Using spectrum as a commons can work through use of simple rules
• Innovation occurs when driven by needs
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HPWREN
• NSF funded R&D effort started in 2000
• Goal was to support high performance networking community with access in hard to reach areas of San Diego County
• Represents ‘best practices’ for Part 15 deployment and operations
• <http://hpwren.ucsd.edu/>
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Current Topology of HPWREN
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HPWREN in Action
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Wireless needs a ‘First Flight’
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New Devices - New Rules
• Mesh networking
• Smart Radios
• Cognitive Radios
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New Rules of the Road
• Consider wireless networks as extensions of your wired Ethernet networks
• 802.11b equivalent to 10 Mbps Ethernet
• 802.11a/g equivalent to 100 Mbps Ethernet
• 802.11n equivalent to 1 Gbps Ethernet
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Wireless LINC Coverage
For more information, contact Tom Joyce, Project Manager, NCIC, (802) 748 – 5101 x 14, [email protected]
VTNH
Carroll
Cöos
Grafton
Caledonia
EssexOrleans
January 29, 2007
THE “WIRELESS LINC” INITIATIVE
A Public/Private Partnership
Managed by NCIC, LIDC & VBC
Establishing an expansive, state-of-the-art
Broadband Infrastructure throughout
Caledonia, Essex & Orleans Counties of Vermont
And Carroll, Coos & Grafton Counties of New Hampshire
BACKGROUND:
With challenging terrain and a low population density, our region’s telecommunications infrastructure
lacks a sufficient return-on-investment for the private industries’ interests. As a result, we have old
infrastructure with varying levels of survivability and redundancy.
Our broadband options to date are too expensive. We have little-to-no cellular systems. And the only
fiber optic lines are for dedicated purposes. The majority of our region lacks the communication
technologies needed for establishing a vibrant economy and providing public safety.
Wireless LINC looks forward to the implementation and tie-in to North-Link and the opportunities it will
afford – and to assist in increasing the availability and access across the region!
MISSION:
Expanding the region’s economy and services by providing high speed, high technology connectivity for
technology-based business, public, education, health and safety professionals.
OVERVIEW:
We intend to initiate the project with three to four pilot projects around the region. Coordination is
being done with numerous organizations to ensure both the pilots and the regional investment delivers to
its full potential. Coordinated efforts are being made with:
! Wireless Internet Service Providers (WISP) to develop optimal performance for the businesses
and homes while developing the most effective operating relationship
! Educational Institutions including k-12 along with higher education to ready the organizations to
deliver programs as the system comes on-line
! Tele-health Organizations to participate in the preparation and investment of technologies which
can impact the region’s services
! Public Safety Departments to define the shortfalls of current systems, to integrate plans and
technologies.
Wireless LINC is proposing a four part solution, including: an infrastructure deployment; a regional area
network; an integrated revolving loan fund for supporting the buildup of related broadband business; and
a supporting education/call center for end users.
INFRASTRUCTURE
Because of the terrain and low population, along with current technological advances, a fixed wireless
infrastructure fits the region’s needs very well. Wireless provides highly secure and easily up-gradable
technologies that can offer state-of-the-art performance both now and as the demands increase.
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The Internet
• Ten years now since the start of the commercial Internet (May, 1995)
• Twenty years since the Part 15 SS rules (June, 1985)
• ‘Same day service in a nanosecond world’
• The ‘pioneers’ get the arrows
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Conclusions
• ‘Good Enough’ will dominate user deployments
• Systems evolution will track Moore’s Law
• 1 Gbps radios at Wi-Fi pricing will be available by 2010 (802.11n 500 Mbps today)
• ‘Best Practices’ effort needed to speed the evolution/deployment (Super-Fi systems)