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Impact of VoIP and QoS on Open and Distance Learning

Year 2006, Volume: 7 Issue: 3, 28 - 42, 01.09.2006

P. C. SAXENA Scss Sanjay Jasola Ramesh C. Sharma

Abstract

Voice over Internet Protocol (VoIP) is becoming a reality in many organizations. The potential for mobility in voice over wi-fi networks will derive demand for the technology. Wireless VoIP is poised to rival VoIP as an alternative telephony tool. Internet has been used to transport data in the form of packet. In the past, Internet did not support any kind of sophisticated quality of service (QoS) mechanism. Although the type of service (TOS) field in the Internet protocol (IP) header has been existing and has been allowing the differentiated treatment of packets, it was never really used on a large scale. The voice is sensitive to delay and jitter so bandwidth must be guaranteed while transporting it. With the extensive use of Internet for carrying voice, there is a need to add QoS functionality in it. QoS with reference to VoIP has been discussed in the paper. Limited bandwidth and network latency are the issues which need to be considered while using wireless LAN for packetized voice data. Efforts of standards like 802.11e which will take care of these issues, have also been explored. The impact of these technologies on distance education has also been explored in the paper.

Keywords

Computer Networks; Voice Over Internet Protocol (voip); TCP/IP; Wireless Lan; Quality of Service (qos); Open and Distance Education; Learner Support

References

  • BARDEN, B.; Zhang, L.; Berson, S.; Herzog, S.; & Jamin, S. (1997). Resource reservation Protocol (RSVP) version 1: Functional Specification, RFC 2205, Internet
  • Engineering Task Force, October, 1997.
  • BATES, T. (2001). National strategies for e-learning in post-secondary education and training, Paris: UNESCO, IIEP
  • BERGE, Z., Collins, M. and Dougherty, K. (2000). Design guidelines for web-based courses, in Abby, B. (ed) Instructional and cognitive impacts of web-based education, (pp. 32-40), Hershey: IDEA Group
  • BRUNO, S. (2001). Fixed mobile internet convergence (FMIC). Telematics and Informatics IS (2001), pp. 135-141.
  • COFFMAN, S. (2001). Distance education and virtual reference: Where are we headed, Computers in Libraries, 21 (4), April 2001, pp. 20-25.
  • DONOVAN, S. & Cannon, M. (1998). A Functional Description of SIP-PSTN Gateway,
  • Internet Draft, IETF, November. GARRISON, D. (2004). E-Learning in the 21st Century, London: RoutledgeFalmer
  • GEIER, J. (2004). Voice over wireless LAN, wi-fi Planet.
  • GUPTA, S. D. (2003). VoIP: Packaged voice and more, Network magazine, pp. 54
  • HAMDI, M.; Verscheure, O.; and Hubaux, J.-P. (2003). Voice service interworking for PSTN and IP networks. IEEE Communication Magazine 5, pp. 104-111.
  • HANDLEY, M.; Schulzrinne, H.; Schooler, E.; & Rosenberg, J. (2001). SIP: Session
  • Initiation Protocol, Internet Draft, IET F, January. http://grouper.ieee.org/groups/802/11/Reports/tge_update.htm http://qos.ittc.ukans.edu/ipqos/ip_qos.htm ITU-T Recommendation H.323, Systems for multimedia communication in packet mode, 1998.
  • LAURILLARD, D. (2002). Rethinking University Teaching: a conversational framework for the effective use of learning technologies, London: Routledge
  • LIPSET, V. (2004). VoIP Synergy: Voice to drive wireless adoption, wi-fi Planet.
  • MASON, R. (1998). Models of on-line courses. ALN Magazine, 2(2) Retrieved March , 2006, from http://www.aln.org/publications/magazine/v2n2/mason.asp
  • MAYES, T. (2000). Pedagogy, Lifelong Learning and ICT, Retrieved on March 24, from http://www.ipm.ucl.ac.be/ChaireIBM/Mayes.pdf
  • MINOLI, D.; & Minoli, E. (1998). Delivering Voice over IP Networks. New York: Wiley.
  • MITRA, S. (1999). Virtual institutions in the Indian subcontinent, (pp. 125-134), in
  • Farrell, G. (ed) The Development of Virtual Education: A Global perspective, Vancouver: The Commonwealth of Learning MORTADA, I. & Probst, W. (2001). Internet telephony signaling. Telematics and Informatics 18 (2001), pp. 159-194.
  • ROSSEN, E. and Hartley, D. (2001). Basics of E-Learning, Info-Line, 109, September
  • STARR, R. M. (1997). Delivery instruction on the World Wide Web: Overview and basic design principles, Educational Technology, 37 (3), 7-15
  • WELLER, M. J. (2000). Creating a large-scale, third generation distance education course, Open Learning, 15 (3), 243-251.

P. C. SAXENA SCSS, Jawaharlal Nehru University

Year 2006, Volume: 7 Issue: 3, 28 - 42, 01.09.2006

P. C. SAXENA Scss Sanjay Jasola Ramesh C. Sharma

Abstract

References

  • BARDEN, B.; Zhang, L.; Berson, S.; Herzog, S.; & Jamin, S. (1997). Resource reservation Protocol (RSVP) version 1: Functional Specification, RFC 2205, Internet
  • Engineering Task Force, October, 1997.
  • BATES, T. (2001). National strategies for e-learning in post-secondary education and training, Paris: UNESCO, IIEP
  • BERGE, Z., Collins, M. and Dougherty, K. (2000). Design guidelines for web-based courses, in Abby, B. (ed) Instructional and cognitive impacts of web-based education, (pp. 32-40), Hershey: IDEA Group
  • BRUNO, S. (2001). Fixed mobile internet convergence (FMIC). Telematics and Informatics IS (2001), pp. 135-141.
  • COFFMAN, S. (2001). Distance education and virtual reference: Where are we headed, Computers in Libraries, 21 (4), April 2001, pp. 20-25.
  • DONOVAN, S. & Cannon, M. (1998). A Functional Description of SIP-PSTN Gateway,
  • Internet Draft, IETF, November. GARRISON, D. (2004). E-Learning in the 21st Century, London: RoutledgeFalmer
  • GEIER, J. (2004). Voice over wireless LAN, wi-fi Planet.
  • GUPTA, S. D. (2003). VoIP: Packaged voice and more, Network magazine, pp. 54
  • HAMDI, M.; Verscheure, O.; and Hubaux, J.-P. (2003). Voice service interworking for PSTN and IP networks. IEEE Communication Magazine 5, pp. 104-111.
  • HANDLEY, M.; Schulzrinne, H.; Schooler, E.; & Rosenberg, J. (2001). SIP: Session
  • Initiation Protocol, Internet Draft, IET F, January. http://grouper.ieee.org/groups/802/11/Reports/tge_update.htm http://qos.ittc.ukans.edu/ipqos/ip_qos.htm ITU-T Recommendation H.323, Systems for multimedia communication in packet mode, 1998.
  • LAURILLARD, D. (2002). Rethinking University Teaching: a conversational framework for the effective use of learning technologies, London: Routledge
  • LIPSET, V. (2004). VoIP Synergy: Voice to drive wireless adoption, wi-fi Planet.
  • MASON, R. (1998). Models of on-line courses. ALN Magazine, 2(2) Retrieved March , 2006, from http://www.aln.org/publications/magazine/v2n2/mason.asp
  • MAYES, T. (2000). Pedagogy, Lifelong Learning and ICT, Retrieved on March 24, from http://www.ipm.ucl.ac.be/ChaireIBM/Mayes.pdf
  • MINOLI, D.; & Minoli, E. (1998). Delivering Voice over IP Networks. New York: Wiley.
  • MITRA, S. (1999). Virtual institutions in the Indian subcontinent, (pp. 125-134), in
  • Farrell, G. (ed) The Development of Virtual Education: A Global perspective, Vancouver: The Commonwealth of Learning MORTADA, I. & Probst, W. (2001). Internet telephony signaling. Telematics and Informatics 18 (2001), pp. 159-194.
  • ROSSEN, E. and Hartley, D. (2001). Basics of E-Learning, Info-Line, 109, September
  • STARR, R. M. (1997). Delivery instruction on the World Wide Web: Overview and basic design principles, Educational Technology, 37 (3), 7-15
  • WELLER, M. J. (2000). Creating a large-scale, third generation distance education course, Open Learning, 15 (3), 243-251.
There are 23 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

P. C. SAXENA Scss This is me

Sanjay Jasola This is me

Ramesh C. Sharma This is me

Publication Date September 1, 2006
Submission Date February 27, 2015
Published in Issue Year 2006 Volume: 7 Issue: 3

Cite

APA Scss, P. C. S., Jasola, S., & Sharma, R. C. (2006). Impact of VoIP and QoS on Open and Distance Learning. Turkish Online Journal of Distance Education, 7(3), 28-42.