Many emerging next-generation Internet applications, such as videoconferencing, multimedia distribution, and high-performance scientific computing, are characterized by high bandwidth requirements, multi-source and multi-destination communication paradigms, strict QoS requirements with respect to delay and loss, and high reliability and survivability requirements. In order to support these diverse requirements, emerging networks must be able to manage resources in a flexible manner.

This project investigates a service-oriented optical network architecture that is enabled by an underlying optical transport network capable of dynamic and agile resource allocation. An optical transport layer provides the basic mechanisms for reserving resources, and an optical service layer builds a set of services over the basic optical transport layer. In the project, specific problems to be addressed include 1) investigating mechanisms for supporting manycast communication services in optical networks, 2) investigating mechanisms for providing survivability in such networks, and 3) developing methods for supporting reliable transport in optical networks. The proposed activity will result in a framework and an architecture for deploying a wide range of services in optical networks in order to support the requirements of the most demanding next-generation applications. The project will also result in the development of new algorithms and protocols for implementing manycasting and providing reliable services, and will lead to the development of analytical models for evaluating these algorithms and protocols. The broader impact of the proposed activity is that it will provide valuable training for graduate students, preparing them for careers in research and engineering in the field of optical networking.

Principal Investigators:

Dr. Vinod Vokkarane and Dr. Jason Jue

Students:

• Deepak Chandran
• Bharat Komattireddy
• Deepak Padmanabhan
• Paul Ramos
• Bathula Balaghandhar
• Rajesh Bikram
• Neal Charbonneau
• Julie Sullivan
• Kavitha Bhaskaran
• Fred Ekstrand
• Jeremy Plante

Research Publications:

1. Balagangadhar G. Bathula and Vinod M. Vokkarane, "QoS-Based Manycasting Over Optical Burst-Switched (OBS) Networks," accepted, IEEE/ACM Transactions on Networking, Jan. 2010.
2. Rajesh R.C. Bikram and Vinod M. Vokkarane, "TCP Over Optical Burst Switching (OBS): To Split or Not To Split?," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 27, no. 23, pp. 5208-5219, Dec. 2009.
3. Bharat Komatireddy, Neal Charbonneau, and Vinod M. Vokkarane, "Source-Ordering for Improved TCP Performance over Load-Balanced Optical Burst-Switched (OBS) Networks," Springer Photonic Network Communications, Sept. 2009.
4. R.R.C. Bikram, N. Charbonneau, and V.M. Vokkarane, “Coordinated Multi-Layer Loss Recovery in TCP over Optical Burst-Switched (OBS) Networks,” Proceedings, IEEE ICC 2010, Cape Town, South Africa, May, 2010.
5. N. Charbonneau and V.M. Vokkarane, “Tabu Search Meta-Heuristic for Static Manycast Routing and Wavelength Assignment over Wavelength-Routed Optical WDM Networks,” Proceedings, IEEE ICC 2010, Cape Town, South Africa, May, 2010.
6. N. Charbonneau and V.M. Vokkarane, “Static Manycast Routing and Wavelength Assignment over Wavelength-Routed Optical WDM Networks,” Proceedings, Third IEEE International Conference on Advanced Networks and Telecommunication Systems (ANTS), IIT Delhi, India, Dec 14 -16, 2009.
7. J. Sullivan, P. Ramos, and V.M. Vokkarane, “Unfairness in TCP Performance over Lossy Optical Burst-Switched (OBS) Networks,” Proceedings, Third IEEE International Conference on Advanced Networks and Telecommunication Systems (ANTS), IIT Delhi, India, Dec 14 -16, 2009.
8. R.R.C. Bikram and V.M. Vokkarane, "Dynamic Load-Balanced Manycasting Over Optical Burst-Switched (OBS) Networks," Proceedings, IEEE/OSA OFC/NFOEC 2009, San Diego, CA, Mar. 2009.
9. D. Chandran, N. Charbonneau, and V.M. Vokkarane, "Proactive Loss Recovery using Forward Segment Redundancy in Optical Burst-Switched (OBS) Networks," Proceedings, Second IEEE International Conference on Advanced Networks and Telecommunication Systems (ANTS), IIT Bombay, India, Dec 15 -17, 2008.
10. V.M. Vokkarane, and B.G. Bathula, "Manycast Service in Optical Burst/Packet Switched (OBS/OPS) Networks," Invited Paper, Proceedings, Second ICST/ACM International Conference on Networks for Grid Applications (GridNets 2008), Beijing, China, Oct. 2008.
11. B.G. Bathula, R.R.C. Bikram, V.M. Vokkarane, and S. Talabattula, "Impairment-Aware Manycasting Algorithms Over Optical Burst-Switched Networks," Proceedings, 17th IEEE International Conference on Computer Communications and Networks (ICCCN 2008), St. Thomas, Virgin Islands, Aug. 2008.
12. D. Padmanabhan, R.R.C. Bikram , and V.M. Vokkarane, "TCP Over Optical Burst Switching (OBS): To Split or Not To Split?," Proceedings, 17th IEEE International Conference on Computer Communications and Networks (ICCCN 2008), St. Thomas, Virgin Islands, Aug. 2008.
13. B.G. Bathula, V.M. Vokkarane, and R.R.C. Bikram, "Impairment-Aware Manycasting Over Optical Burst-Switched Networks," IEEE International Conference on Communications (ICC 2008), Beijing, China, May 2008.
14. B. Komattireddy and V.M. Vokkarane, "Source-Ordering for Improved TCP Performance over Load-Balanced Optical Burst-Switched (OBS) Networks," Proceedings, IEEE/CreateNet BROADNETS 2007, Optical Networking Symposium, Raleigh, NC, Sep. 2007.
15. X. Huang, Q. She, V.M. Vokkarane, and J.P. Jue, "Manycasting over Optical Burst-Switched Networks," Proceedings, IEEE International Conference on Communications (ICC 2007), Glasgow, Scotland, Jun. 2007.
16. B. Komattireddy, D. Chandran, and V.M. Vokkarane, "TCP-Aware Load-Balanced Routing in Optical Burst-Switched (OBS) Networks," Proceedings, IEEE/OSA OFC/NFOEC 2007, Anaheim, CA, Mar. 2007.

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