Home > People > zhigang_liu
Zhigang Liu
Member of Research Staff
Social Proximity Networks
Contact
Background
I am a senior researcher in the System Research Center in Nokia Research Center (NRC), Palo Alto, California. Prior to moving to Palo Alto in November 2006, I have been working in NRC, Dallas, Texas for 8 years. My past research work includes Robust Header Compression (ROHC) for VoIP and SIP, optimization of various Internet applications such as web browsing and email over wireless networks, XML compression, and other areas including security and power management.
Besides conceptual studies and hands-on validations, I participated in standardization work in IETF, 3GPP, and 3GPP2. I also managed several projects in the above areas during the past 5 years.
It is my passion to carry on cutting-edge research that can generate real benefits to people’s life. My current research focuses on next generation architecture and platform for providing distributed services and resource sharing over mobile heterogeneous networks.
Before joining Nokia, I worked in the Space Science Center in University of New Hampshire as a Research Assistant in 1995-1997. My professional career started back in Beijing, China as a Software Engineer from 1992 to 1994.
I received my BS degree in Physics in 1992 from Peking University (Beijing), MS degree in Physics in 1997 from University of New Hampshire, and MS degree in Computer Science in 1998 from University of Texas at Austin.
I am happily married and have an energetic toddler boy.
Supporting/Other Information | Awards
Nokia Quality Award in research category, 2002
16th place in the Chinese National Physics Olympiad, 1988
| | |
Publications | IETF RFCs
- Bormann, C., Liu, Z., Price, R. and G. Camarillo (Ed.), "Applying Signaling Compression (SigComp) to the Session Initiation Protocol (SIP)", IETF RFC 5049, December 2007.
- Price, R., Bormann, C., Christoffersson, J., Hannu, H., Liu, Z. and J. Rosenberg, "Signaling Compression (SigComp)", IETF RFC 3320, January 2003.
- Hannu, H., Christoffersson, J., Forsgren, S., Leung, K.-C., Liu, Z. and R. Price, "Signaling Compression (SigComp) - Extended Operations", IETF RFC 3321, January 2003.
- Liu, Z. and K. Le, Zero-byte Support for Bidirectional Reliable Mode (R-mode) in Extended Link-Layer Assisted RObust Header Compression (ROHC) Profile, IETF RFC 3408, December, 2002.
- Bormann, C., Burmeister, C., Degermark, M., Fukushima, H., Hannu, H., Jonsson, L., Hakenberg, R., Koren, T., Le, K., Liu, Z., Martensson, A., Miyazaki, A., Svanbro, K., Wiebke, T., Yoshimura, T. and H. Zheng, Robust Header Compression (ROHC): Framework and four profiles: RTP, UDP, ESP, and uncompressed, IETF RFC 3095, July 2001.
Papers
- Liu, Z., Saifullah, Y., Greis, M. and S. Sreemanthula, HTTP Compression Techniques, IEEE WCNC, March 2005.
- Le, K., Clanton, C., Liu, Z. and H. Zheng, Efficient and Robust Header Compression for Real-Time Services, IEEE WCNC, September 2000.
| | |
Patents |
6 patents issued:
- 7,155,173 - Method and system for providing a context for message compression (12/26/2006)
- 6,882,637 - Method and system for transmitting and receiving packets (04/19/2005)
- 6,782,047 - Variable length encoding of compressed data (08/24/2004)
- 6,750,791 - Method and device for text data compression (06/15/2004)
- 6,711,164 - Method and apparatus for performing IP-ID regeneration to improve header compression efficiency (03/23/2004)
- 6,542,931 - Using sparse feedback to increase bandwidth efficiency in high delay, low bandwidth environment (04/01/2003)
14 patents pending.
| | |
|
