The American Distance Education Consortium

1. The American Distance Education Consortium • AISEP – “Shared Cyberinfrastructure” • National Science Foundation

2. ADEC-www.adec.edu • Advancing E-Learning, E-Science, E-Access…Anytime, Anyplace • Growing global network • Collaboratories • Strategic Planning • Research and Development • Partnerships and Development

3. Academic Trends - Global • Knowledge and information growing exponentially – no one can be expert – networks critical • Instruction is becoming more learner centers, non-linear and self directed • Growing emphasis on academic accountability-demonstrate competency • Outsourcing and partnerships increasing

4. E-Learning to Change the World Survey November 2004 –nonprofits and associations www.nten.org Entering the Mainstream: Quality and Extent of Online Education in the U.S. 2003 and 2004-Sloan-C A Nation Online: Entering the Broadband Era Sept. 2004 – U.S. Dept. of Commerce

5. Key Findings • Widespread Use of E-Learning: 54% of respondent organizations are using or planning to use this year – 36% more are interested • Vast majority of organizations satisfied:88% • Wide variety of uses: self-paced E-Learning most common • Key benefits: convenience, access and cost effectiveness

6. Sloan C Survey-2003 Data • Approximately two million students studying online • Online enrollment growth expected to accelerate

7. Advanced Internet Satellite Extension Project - NSF Goal: Bring advanced networking applications to geographically remote learners for purposes of research, teaching and extension.

10. Network Map Goes Here

11. Improved Efficiencies of Nitrogen and Irrigation Management Tachyon Central Ground Station San Diego Earth Satellite Internet 2 University of Nebraska Lincoln Satellite IP Data loggers and sensors Tachyon Customer Premise Equipment (CPE) network Computer

17. Mobile R&D

18. Trailers, Testing & Training

19. Quick Deploy

20. Hurricane Katrina

21. Hurricane

22. Indiana Relief

23. Alcorn State

24. Community Relief

25. Teamwork

26. University of New Orleans

27. International Videoconference

28. Affiliated Tribes

29. Washington State

30. Clemson – Biological Research

31. Fort Valley Georgia

32. ADEC Voice Services Walt Magnussen Ph.D Texas A&M University Director for TAMU Internet2 Technology Evaluation Center

33. TAMU ITEC

34. Network Impairments • Packet loss • Jitter • Latency • How much is to much ???

35. VoIP Phone Codec Testing Internet2 Technology Evaluation Center Department of Telecommunications Texas A&M University, College Station, TX 77843 Design and Implementation Network Diagram Network Lab Setup Above: Graduate students Clark Xu Yang and Karthik Kannan analyze results from voice quality test. • Ixia traffic generator loads one side of the network with generic TCP traffic. • Call is placed from one IP phone to the other. • Anritsu Data Quality Analyzer measures packet loss between the two phones. • Agilent VQT transmits audio file though one IP phone and receives the audio file with potential missing packets though the other IP phone. • VQT then compares the two audio files and returns a call quality score (MOS). Contact: Walt Magnussen Email: telecom@tamu.edu http://itec.tamu.edu

36. VoIP Phone Codec Testing Internet2 Technology Evaluation Center Department of Telecommunications Texas A&M University, College Station, TX 77843 Results and Conclusions • G.729 codec degraded at a faster rate when packet loss exceeded 5% • Higher bandwidth applications such as LANs or MANs should use G.711 as default • G.711 codec provided acceptable audio quality (MOS >3.0) up to 5% packet loss. • GIPS codec significantly outperformed G.711 before declining in audio quality at 15%packet loss. Contact: Walt Magnussen Email: telecom@tamu.edu http://itec.tamu.edu

37. ADEC VoIP Beta Testing American Distance Education Consortium (ADEC) Tachyon Networks, Inc. Internet2 Technology Evaluation Center Department of Telecommunications Texas A&M University, College Station, TX 77843 Concept and Design • Call is placed from SAT phone to LAN phone • Contending data is also transmitted over satellite link • Voice and contending data travels from Tachyon facilities in San Diego to the Internet2 network via the San Diego Supercomputing Center • Voice and data gets routed to Texas A&M University Network • Voice and data reaches the ITEC LAN switch • Data Quality Analyzer measures packets lost over the entire network • Voice Quality Tester takes transmitted voice and received voice then returns back a score (MOS) ranking the call quality Contact: Walt Magnussen Email: telecom@tamu.edu http://itec.tamu.edu

38. ADEC VoIP Beta Testing American Distance Education Consortium (ADEC) Tachyon Networks, Inc. Internet2 Technology Evaluation Center Department of Telecommunications Texas A&M University, College Station, TX 77843 Lab Implementation Graduate student Karthik Kannan places a call from the satellite phone to the local network phone. Packetized voice conversation travels to Tachyon indoor units. Lab Testing Setup Tachyon Satellite Indoor Units Tachyon Satellite Antenna Packetized voice conversation is converted to an RF signal to be transmitted over the satellite antenna. Contact: Walt Magnussen Email: telecom@tamu.edu http://itec.tamu.edu

39. ITEC-Ohio Technology Projects • Disaster Recovery Project • Experiments with backup of university administrative data

40. TFN

41. Last Mile Possibilities • Dark fiber to the PoP • Spectrum Network Solutions • Local Area Rings (e.g., CERF) • Leased circuit to PoP • SBC Last Mile Agreement • SOMACS for T1s and DS3s • Other Last Mile Agreements • Satellite and Wireless Networks

42. The Handheld Camera • Camera • Transmitter and receiver • Small battery pack • Handle • Range about 500 feet outdoors

45. The Backpack Camera • Camera and handle • Transmitter and receiver • Big battery pack • Wall plug and automobile battery chargers • Wireless microphone for speaker • Hands-free director’s radio for camera person • GPS receiver video overlay for location documentation • Automobile in motion. Magnetic antenna. • Range about 4000 feet outdoors. Directional antenna.

47. Dr. Janet Poley, C218 Animal Science, P.O. Box 830952, Lincoln, NE. 68583-0952 Voice: 402-472-7000 Fax: 402-472-9060 e-mail: jpoley@unl.edu web: http://www.adec.edu Contact ADEC