I joined AT&T Labs, Research in
September 2006 after finishing my Ph.D. in Computer Science at
University of Maryland, College Park in August 2006.
I received Bachelor's and Master's degrees in Computer Science from
Seoul National University in 1996 and 2000.
I am broadly interested in computer networks, large-scale systems, wireless
networks, and mobile computing.
The following is a list of specific areas that I have recently worked on.
- Content Delivery
A large fraction of today's Internet traffic is due to dissemination of various
contents (e.g., videos).
I have worked on a wide range of aspects in content delivery systems.
For example, I have proposed optimal content placement and request routing
schemes for content delivery network (CDN) providers
and an efficient media streaming scheme in peer-to-peer settings.
- Core Networks
My work on topology inference and service path inference analyzes cellular
service path built on an overlay of multiple backbones. The work has become the
foundation of a tool used by various cellular service operations groups in AT\&T
to identify relevant paths for service issue troubleshooting.
- Wireless Networks
My work in this area spans from wireless link layer to wireless routing.
I have performed a detailed study of bit errors in the IEEE 802.11 link layer
and proposed an efficient error recovery scheme based on the findings.
I also have proposed efficient routing schemes and virtual routing
backbone construction schemes in multi-hop settings.
- Cloud Computing
My current focus is on designing VM allocation
schemes, which cloud service providers can use to allocate incoming VM requests
to physical machines. I am also investigating various performace trade-offs
arising when mobile computing and cloud computing infrastructure are
integrated to support user applications.
- Mitigating low-rate denial-of-service attacks in packet-switched networks
U.S. Patent #8,443,444 issued 05/14/2013
Jia Wang, Chia-Wei Chang, Seungjoon Lee, Bill Lin
- Multi-path Load Balancing Using Route Controller
U.S. Patent #8,175,006 issued 05/08/2012
Seungjoon Lee, Jacobus Van Der Merwe
- Method For Encoding Frame Data
U.S. Patent #7,940,850 issued 05/10/2011
Lusheng Ji, Samrat Bhattacharjee, Bo Han, Seungjoon Lee, Robert R. Miller
- Broadcast Latency Optimization In Multihop Wireless Networks
U.S. Patent #7,903,653 issued 03/08/2011
Seungjoon Lee, Rajiv Gandhi, Yoo-ah Kim
- Method And Apparatus For Scheduling Data Packet Transmission Over A Multihop Wireless Backhaul Network
U.S. Patent #7,366,178 issued 04/29/2008
Seungjoon Lee, Girija Narlikar, Gordon Wilfong, Lisa Zhang