Research

I am working on the mobility management on the Internet. My research is concerned with Mobile IPv6 protocol as well as its extensions in the following main areas of work::

• Enhancement of Mobile IPv6 to enable, in the medium term, the offering of transparent terminal mobility in large operational networks including multiple administrative domains, heterogeneous access technologies and a rapidly growing number of users. This activity will address outstanding Mobile IPv6 issues like interworking with IPv4 and multihoming;

• Optimization of Mobile IPv6 to enable the on-demand activation of such functionality for specific users and applications  (e.g., fast handover, mobile routing mechanism optimization and mobility optimizations for transport performance);

• Investigation of the novel mobility management technologies that are being proposed in different standardization organizations, identifying the solution that provides the most signaificant advantage with respect to Mobile IPv6 and has therefore more chances to be deployed in the long term. This activity will access the promising but not yet fully understood, mobility management alternatives (e.g., SHIM6) , with the objective to identify possible strategies for their smooth deployment starting from an architecture based on Mobile IPv6.

Current Projects

• ENABLE: EU FP6 IST funded Specific Targeted Research Project. The goal of ENABLE is to research, develop, test, integrate and evaluate mechanisms and technologies for the deployment of efficient and operational mobility as a service in large scale IPv6 network environments, taking into account also the transition scenario from IPv4. more...
• OPNET University Program: applies OPNET Modeler in the protocol design, analysis and evaluation, particularly on IPv6 and advanced mobility mechanisms. more...
  

Useful Links

• IEEE Xplore: http://ieeexplore.ieee.org/Xplore/guesthome.jsp
  
• ACM Digital Library: http://portal.acm.org/dl.cfm?coll=portal&dl=ACM&CFID=57878477&CFTOKEN=70354784
  
• IETF IP Version 6 Working Group (ipv6): http://www.ietf.org/html.charters/ipv6-charter.html
• IETF Mobility for IPv6 (mip6): http://www.ietf.org/html.charters/mip6-charter.html
• IETF Site Multihoming by IPv6 Intermediation (shim6): http://www.ietf.org/html.charters/shim6-charter.html
  
• MONAMI6: http://www.ietf.org/html.charters/monami6-charter.html
  
• SHIM6: http://www.shim6.org/
  
• SCTP: http://www.sctp.be/
  
• OPNET: http://www.opnet.com/
  
• NS2: http://www.isi.edu/nsnam/ns/
  

Teaching Assistant

• Winter Semester 2006/2007: Computer Networks
• Winter Semester 2005/2006: Computer Networks
• Homework Assignment: HA1, HA2, HA3, HA4, HA5, HA6, HA7
• Homework Solution: HA1&2-Soln, HA3-Soln, HA4&5-Soln, HA6-Soln, HA7&8-Soln
• Homework Grade: more...
  

Publications

• A New Decentralized Mobility Management Service Architecture for IPv6-based Networks, Deguang Le, Jun Lei, and Xiaoming Fu, in Proceedings of the 3rd ACM International Workshop on Wireless Multimedia Networking and Performance Modeling (WMuNeP 2007), October 2007.
• E2T: End-to-End Tunnelling Extension to Mobile IPv6, Deguang Le, Xiaoming Fu, Dieter Hogrefe, and Xiaoyuan Gu, in Proceedings of the 4th IEEE Consumer Communications and Networking Conference (CCNC 2007), Las Vegas, Nevada, USA, IEEE Communications Society, January 2007.
  
• TCP Performance Improvement through Inter-layer Enhancement with Mobile IPv6,  Deguang Le, Donghui Guo, and Boxi Wu, in Proceedings of the 49th annual IEEE Global Telecommunications Conference (GLOBECOM 2006), San Francisco, CA, USA, November 2006.
• TCP-M6: Mobility Aware TCP Extensions For Mobile IPv6, Deguang Le, Xiaoming Fu, and Dieter Hogrefe, Technical Report No. IFI-TB-2006-04, Institute for Informatics, University of Göttingen, ISSN 1611-1044, March 2006.
• A Review of Mobility Support Paradigms for the Internet, Deguang Le, Xiaoming Fu, Dieter Hogrefe, IEEE Communications Surveys and Tutorials, Volume 8, No. 1, First Quarter, January 2006.
• Evaluation of Mobile IPv6 Based on an OPNET Model, Deguang Le, Xiaoming Fu, Dieter Hogrefe, The 8th International Conference for Young Computer Scientists (ICYCS'05), Beijing, September 2005.
• The Neifilter-based NAT Technology and its Application for NAT Implementation, Deguang Le, Donghui Guo, Boxi Wu, Journal of Computer Engineering (Chinese)，Vol.30, No.3. pp35-37. 2004 (EI).
• Mobile IPv6 in WLAN mobile networks and its implementation, Deguang Le, Donghui Guo, Boxi Wu, and Gerard Parr, Proceedings of 14th IEEE International Conference on Personal, Indoor and Mobile Radio Communications (PIMRC'03), October 2003.
• The Principle of RF8000 GPS Receiver and its Application, Deguang Le, Lixu Zhang, Shuntao Wu, Donghui Guo, Journal of Electronics Technology (Chinese), Vol.30, No.11. pp. 33-37. 2003.
• Caching Technology on Networks and its Application, Deguang Le, Donghui Guo, Boxi Wu, Journal of Computer System & Application (Chinese), Vol.20, No.5, pp. 33-36. 2003.
• PPPoE Technology and Its Application in the Broadband Access System, Deguang Le, Donghui Guo, Boxi Wu, Journal of Application Research of Computers (Chinese). Vol.20, No.3. pp. 130-132. 2003.
• NAT-PT Technology and Its Implementation Based on FreeBSD, Deguang Le, Suntao Wu, Niansheng Liu, Donghui Guo, Journal of Telecommunications Science (Chinese). Vol.19, No.2. pp. 20-23. 2003.
• IPv6 DNS and its Implement based on Linux, Deguang Le, Donghui Guo, Boxi Wu, Journal of Computer Engineering and Application (Chinese). Have been accepted. Vol.39, No.2. pp. 39-52. 2003.
• LAN Access Scheme Based on ADSL and Its Implementation, Deguang Le, Yingyang Lv, Anni Ji, Donghui Guo, Journal of Telecommunication Engineering (Chinese). Vol.42, No.5. pp. 105-109. 2002.
• Installation and Testing of IPv6 Network Based on Linux, Deguang Le, Niansheng Liu, Yingyang Lv, Donghui Guo, Journal of Xiamen University (National Science) (Chinese). Vol.41, No.4, pp. 439-444. 2002.
• SX Microprocessor and its Application in the Digital Measurement of Inductance, Deguang Le, Xiuying Chen, Donghui Guo, Ruitang Liu, Journal of Telecommunication Engineering (Chinese). Vol.41, No.4, PP. 99-101. 2001.
• The Progress of Virtual Instrument Architecture and its Virtual Programming Technology, Deguang Le, Donghui Guo, Ruitang Liu, Gerard Parr, Journal of Computer Automated Measurement & Control (Chinese). Vol.9, No.1, pp. 1-3. 2001.
• The Imbedded Internet Technology and the Design of Its System Based on SX Microprocessor, Deguang Le, Donghui Guo, Ruitang Liu, Gerard Parr,  Proceedings of Embedded Systems of CMS in Year 2000 National Conference (Chinese), Beijing, China. pp. 35-139. October 2000.
  
  

Life in Goettingen

• University:
  

• Travel:
  

  Deutsche	Rhine	Castle	Rhine&Castle	Hannover-city hall	Koeln-dom



• Sport:
  

  Serve	Backhand	Match in Koeln	Match with friend	Play with friend	Serve



• Others: more..
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