Picture of Nakjung Choi

Nakjung Choi

Seoul, South Korea
Member of Technical Staff


Ph.d., School of Computer Science and Engineering, Seoul National University, August 2009


Nakjung Choi received the B.S. and Ph.D. degrees in computer science and engineering from Seoul National University (SNU), Seoul, Korea, in 2002 and 2009, respectively. From September 2009 to April 2010, he was a postdoctoral research fellow in the Multimedia and Mobile Communications Laboratory, SNU. Since April 2010, he is a member of technical staff at Bell Labs, Alcatel-Lucent, Korea. His research interests are mobile networks, software defined networking, information centric networking, and green networking.

Honors and Awards

Nakjung Choi, Jiho Ryu, Yongho Seok, Yanghee Choi, and Taekyoung Kwon, "Unicast-Friendly Multicast in IEEE 802.11 Wireless LANs," one of three best paper awards, IEEE CCNC 2006.

Haeyong Kim, Yongho Seok, Nakjung Choi, Yanghee Choi and Taekyoung Kwon, "Optimal Multi-sink Positioning and Energy-efficient Routing in Wireless Sensor Networks," one of two best paper awards, ICOIN 2005.

The Prize for Encouragement at the 12th Samsung Humantech Paper Contest
 - Yongho Seok and Nakjung Choi, "Temporal Fairness Guarantee in Multi-rate Wireless LANs for Per-Flow Protection," the 12th Samsung Humantech Paper Contest, February 2006.

Professional Activities

AsiaFI ICN WG Co-chair

JTC1/SC39 (Sustainable IT) Korea Committee Member

Selected Articles and Publications

Nakjung Choi, Jeongran Lee, Jaehyun Hwang, "Scalable and Energy Efficient WiFi Management," accepted for IEEE International Conference on Consumer Electronics (ICCE), Las Vegas, USA, January 2014.

Jaime Llorca, Antonia Tulino, Kyle C Guan, Jairo O Esteban, Matteo Varvello, Nakjung Choi, and Dan Kilper, "Dynamic In-Network Caching for Energy Efficient Content Delivery," IEEE INFOCOM 2013 (mini-conference), Turin, Italy, July 2013.

Nakjung Choi, Kyle C. Guan, Dan Kilper, and Gary Atkinson, "In-Network Caching Effect on Optimal Energy Consumption in Content-Centric Networking," IEEE ICC 2012, Ottawa, Canada, June 2012.

Books and Chapters

Nakjung Choi, Jiho Ryu, Yongho Seok, Taekyoung Kwon and Yanghee Choi, "Optimizing Aggregate Throughput of Upstream TCP Flows over IEEE 802.11 Wireless LANs," a chapter (Resource management in WLANs) in 4G Mobile and Wireless Communications Technologies, Sofoklis Kyriazakos, Ioannis Soldatos, and George Karetsos (Ed), River Publishers, August 2008.


Youjin Kim, Youngsik Jung, Jaedu Huh, Nakjung Choi, Choongho Lee, Soyoung Park, Taekyoung Kwon and Yanghee Choi,"Method of Transmission and Reception Data Frame of Supporting Video MAC Protocol and System," Korea Patent 10-0932125, December 8, 2009.

Nakjung Choi, Eunkyoung Paik, Minji Nam, Jiho Ryu, Sejun Park, Byungsoo Chang and Yanghee Choi, "Peer mobile router authentication method, and multiple peer care-of addresses registration method, and mobile router failover method for multi-homed mobile networks," Korea Patent 10-0886081-0000, February 20, 2009.

Nakjung Choi, Chulhyun Park, Jiho Ryu, Taekyoung Kwon, Yanghee Choi and Eunkyoung Paik,"Multiple Network Interface Apparatus and Method, and Traffic Control Option Information Transmission Method and Network Interface Selection Method in Its ," Korea Patent 10-0840463-0000, June 16, 2008.