Research on  IETF Next Step in Signaling (NSIS)

• C. Shen, H. Schulzrinne, S. Lee and J. Bang, "NSIS Operation Over IP Tunnels", draft-ietf-nsis-tunnel-00.txt, (work in progress) October 2005

• C. Shen, H. Schulzrinne, S. Lee and J. Bang, "Routing Dynamics Measurement and Detection for Next Step Internet Signaling Protocol", in Proc. of IEEE/IFIP Workshop on End-to-End Monitoring Techniques and Services (E2EMON), Nice,  France, May 2005. A more detailed version can be found in this Technical Report.

• C. Shen, H. Schulzrinne, S. Lee, "Internet Routing Dynamics and NSIS Related Considerations", draft-shen-nsis-routing-00.txt, (work in progress) October 2004

• R. Hancock, J. Manner, C. Shen, "Interactions of Routing and Mobility on NTLP and NSLP ", draft-hancock-nsis-routing-mobility-00.txt, (work in progress) October 2003

• C. Shen, "Several Framework Issues Regarding NSIS and Mobility", draft-shen-nsis-mobility-fw-00.txt, (work in progress) July 2002

Research on Flow Transparent RSVP - Mobile IP Interoperation

Concepts and Specifications:

• C. Shen, W. Seah, A. Lo, H. Zheng, M. Greis, "Mobility Extensions to RSVP in an RSVP-Mobile IPv6 Framework", draft-shen-nsis-rsvp-mobileipv6-00.txt (work in progress) July 2002

• C. Shen, W. Seah, A. Lo, H. Zheng, M. Greis, "An Interoperation Framework for Using RSVP in Mobile IPv6 Networks", draft-shen-rsvp-mobileipv6-interop-00.txt , (work in progress) July 2001 

• C. Shen, A. Lo, W. Seah, "Performance Evaluation of Flow Transparent Mobile IPv6 and RSVP Integration", Proc. SCI/ISAS 2001, Vol. IV, pp. 515 ~ 520, Orlando, Florida USA, July 2001.

• C. Shen, A. Lo, W. Seah, C.C. Ko, "On Providing Flow Transparent Mobility Support for IPv6-based Real-Time Services", Proc. MoMuC 2000, pp. 2B-4-1 ~ 4, Tokyo, Japan

• Master thesis by Charles Shen, year 2001  (pdf)  (ps)

Prototype Implementation v1: 

• Prototype source codes by Donglin Shi complying with the July 2002 Internet Draft are available here.
• Comprehensive information on the implementation can be found in Donglin's Master thesis. (pdf)  (ps) 

Research on QoS Support for Wireless LAN with the EU-IST MobyDick Project 

• D. He, C. Shen, “Simulation Study of IEEE 802.11e EDCF”, in Proc. IEEE VTC Spring 2003

• C. Shen and D. He, “Simulation Study of IEEE 802.11 EDCF Mode”, Technical Report, 2002-MOBYDICK-TR-002-CI, September 2002.

Teaching Activities (Course Manager / Teaching Assistant)

• COMS E6181 Advanced Internet Services, Fall 2003 - Summer 2004, Department of Computer Science, Columbia University

• COMS E6180 Modeling and Performance Evaluation, Summer 2003, Department of Computer Science, Columbia University

• ELEN E6951 Wireless and Mobile Networking II, Spring 2003,  Department of Electrical Engineering, Columbia University

Some personal stuff ...        Motto                          

Last updated:    November 2003  Charles Shen