The Application of Distance Education Using Advanced Hybrid Networking Chinese-American Networking Symposium Shanghai, Peo...
American Distance Education Consortium WWW.ADEC.EDU
ADEC <ul><li>Janet Poley, President </li></ul><ul><li>Ancillary organization of the University of Nebraska </li></ul><ul><...
Advanced Internet Satellite Extension Project (AISEP) <ul><li>3 year, National Science Foundation  (NSF) </li></ul><ul><li...
Advanced Internet Satellite Extension Project <ul><li>Partnerships </li></ul><ul><ul><li>ADEC ,  Internet2  Universities, ...
Lead Institutions for AISEP <ul><li>University of Nebraska-Lincoln </li></ul><ul><li>University of Maryland-College Park <...
Goal <ul><li>Bring advanced networking applications to geographically remote campuses and learning centers for purposes of...
Project will: <ul><li>enable unreachable campuses, remote learning centers, extension offices to share in advanced network...
Objectives <ul><li>AISEP will: </li></ul><ul><li>explore use of satellite to deliver Internet services to determine compat...
Tachyon.net
ADEC Network - SDSC
Typical Tachyon Satellite Dish Installation
ADEC Network Site Map
Research objectives <ul><li>establish standards for &quot;acceptable, application- based Internet&quot; for remote locatio...
Research objectives (continued) <ul><li>investigate QoS  </li></ul><ul><li>study network performance  </li></ul><ul><li>de...
Transportable Dish System
Internet 1 or Internet 2 Earth Satellite Permanent Ground  Station Tachyon Central Ground  Station San Diego Internet  Ins...
Design Goals <ul><li>Inexpensive to build and operate </li></ul><ul><li>Off-the-shelf parts for easy duplication </li></ul...
Initial Applications <ul><li>Provide distance learning in rural/remote and underserved areas </li></ul><ul><li>Link field ...
Portable
Satellite Trailer Subsystems <ul><li>Dish and radio transceiver </li></ul><ul><li>Power </li></ul><ul><li>Leveling and aim...
Next steps <ul><li>Develop improved designs </li></ul><ul><li>Demonstrate at conferences </li></ul><ul><li>Publish papers ...
Application Testing
H.323 Over Satellite
Variables <ul><li>Tachyon Network </li></ul><ul><ul><li>Satellite IP, asynchronous, bandwidth settings dedicated vs. non-d...
Testing <ul><li>Test tape </li></ul><ul><li>Internet1 and Internet2 </li></ul><ul><li>Tachyon bandwidth service  </li></ul...
Internet 1 or Internet 2 Earth Satellite Ground  Station Tachyon Central Ground  Station San Diego Internet  Instructional...
Observations <ul><li>Data rate </li></ul><ul><li>Frame rate </li></ul><ul><li>Packet loss </li></ul><ul><li>Pixilation </l...
Preliminary results <ul><li>Some fluctuations in quality </li></ul><ul><li>Some packet loss </li></ul><ul><li>It worked! <...
Program Design
ADEC H.323 Presentation for Megaconference III
Lessons Learned <ul><li>Hybrid networking works </li></ul><ul><li>Television techniques can be applied….and they positivel...
Multicast Over Satellite
Variables <ul><li>Internet2 <> Tachyon </li></ul><ul><ul><li>PIM Sparse Mode (Internet2) versus DVMRP (Tachyon) </li></ul>...
Testing/Observations <ul><li>Internet2 <> Tachyon </li></ul><ul><ul><li>Iowa State University – video streaming </li></ul>...
Research Projects <ul><li>EPSCoR </li></ul><ul><ul><li>… to extend the AISEP test-bed into EPSCoR states in a systematic f...
Research Projects <ul><li>EPSCoR </li></ul><ul><ul><li>8 sub-projects </li></ul></ul><ul><ul><ul><li>Land management </li>...
Nebraska Research, Teaching and Extension Project <ul><li>Internet2 Applications to Enhance the Management of Natural and ...
Internet 2 Earth Satellite Satellite IP Tachyon Central Ground  Station San Diego University of Nebraska Lincoln Data logg...
Why this work? <ul><li>ADEC believes distance education…. </li></ul><ul><ul><li>is about providing new knowledge and infor...
Credits <ul><li>Janet Poley, Ph D </li></ul><ul><ul><li>President of ADEC </li></ul></ul><ul><li>Bob Dixson, Ph D, PE </li...
Questions
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The Application Of Distance Education Using Advanced Hybrid Networking

  1. 1. The Application of Distance Education Using Advanced Hybrid Networking Chinese-American Networking Symposium Shanghai, People's Republic of China August 21-23, 2002 Dan Cotton University of Nebraska, Lincoln American Distance Education Consortium (ADEC)
  2. 2. American Distance Education Consortium WWW.ADEC.EDU
  3. 3. ADEC <ul><li>Janet Poley, President </li></ul><ul><li>Ancillary organization of the University of Nebraska </li></ul><ul><li>12 year old non-profit organization of 50 plus state universities and land grant colleges </li></ul><ul><li>Local, state, national and international partnerships </li></ul>
  4. 4. Advanced Internet Satellite Extension Project (AISEP) <ul><li>3 year, National Science Foundation (NSF) </li></ul><ul><li>$4 million </li></ul><ul><li>NSF Supplements </li></ul><ul><ul><li>Research Experiences for Undergraduates (REU) </li></ul></ul><ul><ul><li>Chinese - American Networking Symposium (CANS) </li></ul></ul><ul><ul><li>Experimental Program to Stimulate Competitive Research (EPSCoR) </li></ul></ul>
  5. 5. Advanced Internet Satellite Extension Project <ul><li>Partnerships </li></ul><ul><ul><li>ADEC , Internet2 Universities, smaller and minority serving institutions, rural and remote learners </li></ul></ul><ul><ul><li>Tachyon , Inc. </li></ul></ul><ul><ul><li>OARnet & ITEC-Ohio (Internet2 Technology Evaluation Center) </li></ul></ul><ul><ul><li>University of California San Diego Supercomputer Center - SDSC </li></ul></ul><ul><ul><li>Cooperative Association for Internet Data Analysis - CAIDA </li></ul></ul><ul><ul><li>National Laboratory for Applied Network Research - NLANR </li></ul></ul>
  6. 6. Lead Institutions for AISEP <ul><li>University of Nebraska-Lincoln </li></ul><ul><li>University of Maryland-College Park </li></ul><ul><li>University of Illinois </li></ul><ul><li>North Carolina State University </li></ul><ul><li>North Carolina A&T University </li></ul><ul><li>Washington State University </li></ul>
  7. 7. Goal <ul><li>Bring advanced networking applications to geographically remote campuses and learning centers for purposes of research, teaching and extension. </li></ul>
  8. 8. Project will: <ul><li>enable unreachable campuses, remote learning centers, extension offices to share in advanced networking research and applications </li></ul><ul><li>create access for the research university community to scientific, cultural and human resources otherwise inaccessible </li></ul>
  9. 9. Objectives <ul><li>AISEP will: </li></ul><ul><li>explore use of satellite to deliver Internet services to determine compatibility of satellite technology with I2 services and applications </li></ul><ul><li>explore deployment and integration of DE applications, including collaborative applications at rural, remote institutions and extension learning centers </li></ul>
  10. 10. Tachyon.net
  11. 11. ADEC Network - SDSC
  12. 12. Typical Tachyon Satellite Dish Installation
  13. 13. ADEC Network Site Map
  14. 14. Research objectives <ul><li>establish standards for &quot;acceptable, application- based Internet&quot; for remote locations </li></ul><ul><li>understand how to establish, build and support a satellite-based IP network </li></ul><ul><li>Connect Tachyon satellite gateway to the San Diego NAP (I1 and I2 service) </li></ul><ul><li>Provide CPEs (formerly TAPS) to ADEC member institutions (70 sites) </li></ul>
  15. 15. Research objectives (continued) <ul><li>investigate QoS </li></ul><ul><li>study network performance </li></ul><ul><li>determine requirements to support this type of network </li></ul><ul><li>determine parameters for a sustainable business model </li></ul>
  16. 16. Transportable Dish System
  17. 17. Internet 1 or Internet 2 Earth Satellite Permanent Ground Station Tachyon Central Ground Station San Diego Internet Instructional Sites Instructional Sites Instructional Sites Transportable Ground Station
  18. 18. Design Goals <ul><li>Inexpensive to build and operate </li></ul><ul><li>Off-the-shelf parts for easy duplication </li></ul><ul><li>Easy to operate by one person with one day training </li></ul><ul><li>Small and light </li></ul><ul><li>Reliable and adaptable to diverse field conditions </li></ul><ul><li>Reliable and adaptable to diverse field conditions </li></ul><ul><li>Easily modified </li></ul>
  19. 19. Initial Applications <ul><li>Provide distance learning in rural/remote and underserved areas </li></ul><ul><li>Link field research to campus computers, laboratories, and collaborators worldwide </li></ul><ul><li>Link field instruction and demonstrations to campus classrooms </li></ul><ul><li>Link field activities to remote databases using devices such as PDAs </li></ul><ul><li>Remote monitoring of construction projects </li></ul><ul><li>Special events, conferences, fairs, disasters, etc. </li></ul>
  20. 20. Portable
  21. 21. Satellite Trailer Subsystems <ul><li>Dish and radio transceiver </li></ul><ul><li>Power </li></ul><ul><li>Leveling and aiming </li></ul><ul><li>Heating and cooling </li></ul><ul><li>External connections </li></ul><ul><li>Computer </li></ul>
  22. 22. Next steps <ul><li>Develop improved designs </li></ul><ul><li>Demonstrate at conferences </li></ul><ul><li>Publish papers </li></ul><ul><li>Provide training on use of the system </li></ul><ul><li>Provide consultation on design, construction and operation </li></ul><ul><li>Arrange for turnkey system purchases </li></ul>
  23. 23. Application Testing
  24. 24. H.323 Over Satellite
  25. 25. Variables <ul><li>Tachyon Network </li></ul><ul><ul><li>Satellite IP, asynchronous, bandwidth settings dedicated vs. non-dedicated service </li></ul></ul><ul><li>Polycom </li></ul><ul><ul><li>dialing speeds </li></ul></ul><ul><li>Internet1 – Internet2 </li></ul><ul><li>Point-to-point, multi-point </li></ul><ul><li>Data flow: uplink > downlink, downlink > uplink </li></ul><ul><li>Network traffic, noise </li></ul><ul><li>H.323 </li></ul><ul><li>Multipoint Control Unit (MCU) </li></ul>
  26. 26. Testing <ul><li>Test tape </li></ul><ul><li>Internet1 and Internet2 </li></ul><ul><li>Tachyon bandwidth service </li></ul><ul><ul><li>2mb/256k non-dedicated </li></ul></ul><ul><ul><li>2mb/512k non-dedicated </li></ul></ul><ul><li>Identify optimum Polycom speed per Tachyon bandwidth service </li></ul><ul><li>Video tape results </li></ul>
  27. 27. Internet 1 or Internet 2 Earth Satellite Ground Station Tachyon Central Ground Station San Diego Internet Instructional Sites Instructional Sites H.323 Testing ITEC-Ohio
  28. 28. Observations <ul><li>Data rate </li></ul><ul><li>Frame rate </li></ul><ul><li>Packet loss </li></ul><ul><li>Pixilation </li></ul><ul><li>Latency </li></ul><ul><li>Jitter </li></ul>
  29. 29. Preliminary results <ul><li>Some fluctuations in quality </li></ul><ul><li>Some packet loss </li></ul><ul><li>It worked! </li></ul><ul><li>Excellent video </li></ul><ul><ul><li>Internet2 <> 2Mbps / 512Kbps with 384Kpbs Tachyon service level </li></ul></ul>
  30. 30. Program Design
  31. 31. ADEC H.323 Presentation for Megaconference III
  32. 32. Lessons Learned <ul><li>Hybrid networking works </li></ul><ul><li>Television techniques can be applied….and they positively impact program quality </li></ul><ul><ul><li>Studio cameras </li></ul></ul><ul><ul><li>Studio lighting </li></ul></ul><ul><ul><li>Studio set </li></ul></ul><ul><ul><li>Microphones </li></ul></ul><ul><ul><li>Producer / director </li></ul></ul><ul><li>Don’t limit your thinking….explore all possibilities </li></ul>
  33. 33. Multicast Over Satellite
  34. 34. Variables <ul><li>Internet2 <> Tachyon </li></ul><ul><ul><li>PIM Sparse Mode (Internet2) versus DVMRP (Tachyon) </li></ul></ul><ul><ul><ul><li>IGMP </li></ul></ul></ul><ul><li>Internet1, and non-multicast enabled sites </li></ul><ul><ul><li>Cisco </li></ul></ul><ul><ul><li>Quickcom </li></ul></ul><ul><li>MPEG </li></ul><ul><ul><li>VBrick </li></ul></ul><ul><ul><li>Other technologies </li></ul></ul>
  35. 35. Testing/Observations <ul><li>Internet2 <> Tachyon </li></ul><ul><ul><li>Iowa State University – video streaming </li></ul></ul><ul><li>ITEC-Ohio </li></ul><ul><ul><li>ADEC router configuration </li></ul></ul><ul><ul><li>Monitoring </li></ul></ul><ul><li>Works quite well! </li></ul>
  36. 36. Research Projects <ul><li>EPSCoR </li></ul><ul><ul><li>… to extend the AISEP test-bed into EPSCoR states in a systematic fashion, as well as test specific remote sensing, GIS and other scientific applications of hybrid networking, including satellite </li></ul></ul><ul><ul><li>… using appropriate combinations of fiber, satellite, wires and radio technology to carry signals in combination with software and devices for data collection, communications, visualization and decision making </li></ul></ul>
  37. 37. Research Projects <ul><li>EPSCoR </li></ul><ul><ul><li>8 sub-projects </li></ul></ul><ul><ul><ul><li>Land management </li></ul></ul></ul><ul><ul><ul><li>Aquaculture </li></ul></ul></ul><ul><ul><ul><li>Water conservation and management </li></ul></ul></ul><ul><ul><ul><li>Environmental monitoring </li></ul></ul></ul>
  38. 38. Nebraska Research, Teaching and Extension Project <ul><li>Internet2 Applications to Enhance the Management of Natural and Agro-ecosystems.” </li></ul><ul><ul><li>Carbon Sequestration and Global Climate Change </li></ul></ul><ul><ul><li>Improved Efficiencies of Nitrogen and Irrigation Management </li></ul></ul><ul><ul><li>Grazing Behavior of Cattle in the Nebraskan Sandhills </li></ul></ul>
  39. 39. Internet 2 Earth Satellite Satellite IP Tachyon Central Ground Station San Diego University of Nebraska Lincoln Data loggers and sensors Tachyon Access Point (TAP) Computer 802.11b network <ul><ul><li>Improved Efficiencies of Nitrogen and Irrigation Management </li></ul></ul>
  40. 40. Why this work? <ul><li>ADEC believes distance education…. </li></ul><ul><ul><li>is about providing new knowledge and information wherever and whenever the learner is ready to take advantage of it </li></ul></ul><ul><ul><li>positively impacts competition </li></ul></ul><ul><ul><li>leads to improved economic development </li></ul></ul><ul><ul><li>aids in cultural sharing and understanding </li></ul></ul><ul><ul><li>is vital in community building </li></ul></ul><ul><ul><li>requires advanced networking and information technology </li></ul></ul>
  41. 41. Credits <ul><li>Janet Poley, Ph D </li></ul><ul><ul><li>President of ADEC </li></ul></ul><ul><li>Bob Dixson, Ph D, PE </li></ul><ul><ul><li>Chief Research Engineer </li></ul></ul><ul><ul><li>Ohio State, OARnet </li></ul></ul><ul><li>Paul Schopis </li></ul><ul><ul><li>Senior Network Engineer </li></ul></ul><ul><ul><li>ITEC-Ohio </li></ul></ul>
  42. 42. Questions

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