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Hwajung Lee Professor Department of Information Technology, Radford University

About Me
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Hello, my name is Hwajung Lee!

My teaching and research interests are in computer networks and network security. Current research topics include wireless electricity charging protocols in wireless sensor networks, vehicular networks, and distributed systems.

Indentity

Hwajung Lee
RU Box 6933, Department of Information Technology, Radford University, Virginia 24142
540-831-6054
hlee3@radford.edu

Education

  • The George Washington University, Doctor of Science, 2003 Department of Computer Science Computer Networks and Communications Security
  • Yonsei University in Seoul, Korea, M.S., 1995 Department of Computer Science Computer and Communication Network
  • Duksung Women's University in Seoul, Korea, B.S., 1993 Department of Computer Science
  • Faculty Advisor for Student Organizations I am a faculty advisor for five student organizations at Radford University, which are:
    ACM RU Chapter
    Asian Pop Culture Club
    Brazilian Jiu-Jitsu Club
    Korean American Student Association
    Women in Computing Club

Research

Network and Security Research Lab (NSRL)

Modeling and Solving Optimization Problems on Wireless Electricity Charging Protocol in Wireless Sensor Networks using Mixed Integer Programming

(with four female undergraduate student researchers at RU)
PI: Hwajung Lee
funded by CREU (CREU: Collaborative Research Experience for Undergraduates in Computer Science and Engineering) of CRA-W (from 6/20/2011 to 5/31/2012)

Multi-hop Wireless Electricity Charging Protocol in Wireless Sensor Networks

(with four female undergraduate student researchers at RU)
PI: Hwajung Lee
funded by CREU (CREU: Collaborative Research Experience for Undergraduates in Computer Science and Engineering) of CRA-W (from 6/20/2010 to 5/31/2011) One of the Best Proposals of 2010

Energy Efficient Wireless Sensor Networks

(with three female undergraduate student researchers at RU)
PI: Hwajung Lee
funded by CREU (CREU: Collaborative Research Experience for Undergraduates in Computer Science and Engineering) of CRA-W (from 6/20/2008 to 5/31/2009)

Hierarchical Service Composition in Ubiquitous Grid: HiServiC

PI: Hwajung Lee
Funded by the College of Science and Technology at Radford University (from 5/14/08 to 7/20/08)

Implementation on Smarter User Interface for User Controlled Lightpath Software in Grid Computing Networks and Web Application Servers Clustering

PI: Hwajung Lee
funded by the College of Information Science and Technology at Radford University. (from 5/14/07 to 7/20/07)

Developing a Distance Learning Course

PI: Hwajung Lee

Summer Bridge Program (Founding Director: Hwajung Lee)

funded by the College of Information Science and Technology at Radford University. (from 5/14/07 to 7/20/07)

Secure, Reliable and Efficient Data Replica Management in Grid Computing Networks

PI: Hwajung Lee
funded by CREU (CREU: Collaborative Research Experience for Undergraduates in Computer Science and Engineering). (from 6/20/06 to 5/31/07) One of the Best Proposals of 2006

Summer Research Experience on Service-oriented Lightpath Management of Grid Computing Networks and Conference Publications

PI: Hwajung Lee
funded by the College of Information Science and Technology at Radford University. (from 5/8/2006 to 7/16/2006)

Next Generation Security: Assessing Vulnerability of Grid Computing Networks

PI: Hwajung Lee
funded by CREU (CREU: Collaborative Research Experience for Undergraduates in Computer Science and Engineering). (from 6/20/05 to 5/31/06) One of the Best Proposals of 2005

Seed Grant: Survivability and Survivable Reconfiguration for Dynamic Resource Grouping in Grid Computing Environment against Cyber-terrorism

PI: Hwajung Lee
funded by Radford University. (from 11/5/04 to 11/30/06)

AAPT (Accurate and Agile Programming Team) Training

PI: Hwajung Lee
funded and supported by CIST (College of Information Science and Technology) at Radford University since spring 2006

Summer Bridge Program (Founding Director: Hwajung Lee)

funded by Radford University and CIST at RU in 2006
funded by CIST, CAS, Radford University, VCCS, NSF, and Apple in 2007
funded by College of Science and Technology at RU in 2008

Publications and Presentations

Shuyuan Mary Ho and Hwajung Lee, Thief Among Us: Use of Finite State Machine in Identifying Emotional Changes Toward Virtual Betrayal, Journal of Wireless Mobile Networks, Ubiquitous Computing and Dependable Applications, Volume 3, pp 82-98, March 2012

Shuyuan Mary Ho and Hwajung Lee, Use of Finite State Machine in Identifying Emotional Changes Toward Virtual Betrayal, AIS SIGSEC Workshop on Information Security & Privacy, Dec 3-4, 2011, Shanghai China.

Hwajung Lee and Arthur Carter, Early Adoption of the NSF/TCPP Curriculum on Parallel and Distributed Computing for Undergraduates, NSF/TCPP Workshop on Parallel and Distributed Computing Education (EduPar-12) in conjunction with 26th IEEE International Parallel & Distributed Processing Symposium (IPDPS), Shanghai, China, May 21 2012. [Abstract and Presentation]

Hwajung Lee, Research Focus and Possible Collaboration, Women s Institute in Summer Enrichment Sponsored by the Team for Research in Ubiquitous Secure Technology (TRUST), June 19-22 2012, University of California at Berkeley, CA [Presentation]

Nancy White, Chloe Norris, Catherine Greene, and Hwajung Lee, Charging Sensors in Wireless Sensor Networks, The 12th Annual Grace Hopper Celebration of Women in Computing (GHC), Baltimore, Maryland, October 3-6, 2012. [Abstract and Poster].

Carroll Wongchote, Joel Dominic, and Hwajung Lee, Fault Tolerance in Cluster Computing, 21st Annual Undergraduate/Graduate Student Engagement Forum, Radford University, Radford, Virginia, April 17-19, 2012. [Abstract and Presentation]

Andrew Rush and Hwajung Lee, Optimization Calculator For Wireless Sensor Networks Powered By Witricity, 21st Annual Undergraduate/Graduate Student Engagement Forum, Radford University, Radford, Virginia, April 17-19, 2012. [Abstract and Presentation]

Nancy White, Chloe Norris, Eileen Hindmon, Catherine Greene, and Hwajung Lee, Modeling and Solving Optimization Problems on Wireless Electricity Charging Protocol in Wireless Sensor Networks using Mixed Integer Programming, 21st Annual Undergraduate/Graduate Student Engagement Forum, Radford University, Radford, Virginia, April 17-19, 2012. [Abstract and Presentation]

Hwajung Lee, Sustainable Wireless Sensor Networks with Wireless Electricity Charging and Energy Balancing, Women s Institute in Summer Enrichment Sponsored by the Team for Research in Ubiquitous Secure Technology (TRUST), July 15-19, 2011, Carnegie Mellon University, Pittsburgh, PA [Poster]

Bretny Khamphavong, Chloe Norris, Nancy White, Catherine Green, and Hwajung Lee, Wireless Electricity Charging in Wireless Sensor Networks, Richard Tapia Celebration of Diversity in Computing Conference, April 3-5, 2011 [Abstract and Poster]

Catherine Greene, Bretny Khamphavong, Chloe Norris, Nancy White, and Hwajung Lee, Multi-hop Wireless Electricity Charging in Wireless Sensor Networks, 20th Annual Undergraduate/Graduate Student Engagement Forum, April 19-21, 2011, Radford University [Abstract and Presentation]

Hwajung Lee, Optimal Wireless Electricity Charging in Wireless Sensor Networks: To Minimize Energy Loss and Maximize Network Lifetime, International Conference on Computer Communications and Networks, July 12-14, 2010, Orlando, Florida

Jon Carter Farmer, Hwajung Lee, Wireless Sensor Networks without Energy Constraint using Witricity, Big South Undergraduate Research Symposium, April 9-10, 2010, Radford, VA [Abstract and Presentation]

Jon Carter Farmer, Trent Lugar, Hwajung Lee, Computer Aided Rescue Systems with Mobile Robot Agents, Big South Undergraduate Research Symposium, April 9-10, 2010, Radford, VA [Abstract and Presentation]

Hwajung Lee, Optimization Issues under a New Paradigm on Wireless Sensor Network (WSN) Research: WSN with Witricity, the 2009 US Korea Conference on Science, Technology and Entrepreneurship, Raleigh, North Carolina, July 16~19, 2009. [Abstract and Presentation]

Eric Ballance and Hwajung Lee, Proactive Information Delivery System in Ubiquitous Networks, International Journal of Hybrid Information Technology, January 2009

Hwajung Lee, PKI Vulnerability and x-Cryptography in Grid Computing Networks, the 2008 International Conference on High Performance Computing, Networking and Communication Systems (HPCNCS-08), Orlando, Florida, July 7-10 2008, Invited Paper

Eric Ballance and Hwajung Lee, Developing Proactive Information Delivery System through Bluetooth in Ubiquitous Networks, the International Conference on Multimedia and Ubiquitous Engineering (MUE2008), IEEE Computer Society, Seoul Korea, April 24-26, 2008.

Dennis P. Groth, Betty Lauer, Helen H. Hu, and Hwajung Lee, Improving Computer Science Diversity through Summer Camps, ACM SIGCSE 2008, Portland, Oregon, March 12-15, 2008. Proposal, Presentation, and Panel

Eric Ballance, Hwajung Lee, and Joe Derrick, Investigating Ubiquitous Computing Through the Use of IR, Wi-Fi, and Bluetooth Technologies to Enhance Microsoft Onenote for the Tablet PC, the 22nd National Conference on Undergraduate Research (NCUR 2008), Salisbury University, Maryland, April 10-12, 2008, Abstract and Presentation

James Jones and Hwajung Lee, Application-Oriented and Hardware-Constraint-Oriented Routing Protocol Selection in Mobile Ad-hoc Networks, the 22nd National Conference on Undergraduate Research (NCUR 2008), Salisbury University, Maryland, April 10-12, 2008, Abstract and Presentation

H. Lee, Distributed Reconfiguration Algorithm in Survivable Grid Computing Networks, Abstract and Presentation in Proc. of US-Korea Conference on Information Technology 2007, Reston, Virginia, August 9~12, 2007

H. Lee, Uninterruptible Reconfiguration for Dynamic Resource Management in a Grid Computing Network against a Single Link Attack/Failure, Proc. of International Conference on High Performance Computing, Networking and Communication Systems, Orlando, FL, July 9-12, 2007

H. Lee and D. Allen, Dynamic Reconfiguration of User Controlled Lightpath Management in Survivable Grid Computing Network against a Single Link Attack/Failure, Abstract and Poster, TeraGrid2007 Conference, Madison, Wisconsin, June 4-8, 2007

H. Lee, Quality of Service in Grid Computing Network, Abstract and Presentation in Proc. of US-Korea Conference on Communication and Networking Technology 2007, Teaneck, New Jersey, August 10-13, 2006.

H. Lee, Resilient Topology Control using Energy-balanced Sleeping Sensors in Multihop Wireless Sensor Network using Fixed Transmission Power, Proc. of the 10th World Multiconference onSystemics, Cybernetics and Informatics (WMSCI 2006), Orlando, FL, July 16-19, 2006

H. Lee, SEEMLESS: Distributed Algorithm for Topology Control of Survivable Energy Efficient Multihop Wireless Sensor Networks Using Adjustable Transmission Power, Proc. 6th International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2005), IEEE Computer Society Press, Baltimore, Maryland, May 23 - May 25, 2005.

N. Yoo, H. Lee, and H. Choi, XML-BASED Information Assurance Vulnerability Management for System Safety, the 22nd International System Safety Conference (ISSC 2004), Providence Rhode Island, 2 - 6 August, 2004.

N. Yoo, H. Lee, and H. Choi, An XML-Based Impact Analysis Using Security Management With IAVN, The 2004 International Conference on Security and Management (SAM'04), Las Vegas,Nevada, June 21-24, 2004.

H. Lee, H. Choi, S. Subramaniam, and H.-A. Choi, Survival Embedding of Logical Topology in WDM Ring Networks, Information Sciences : An International Journal, Special Issue on Photonics, Networking and Computing, Elsevier, 2002. [Full Paper: .ps, .pdf]

H. Lee, H. Choi, S. Subramaniam, and H.-A. Choi, Preserving Survivability During Logical Topology Reconfiguration in WDM Ring Networks, Proc. 31st ICPP Workshop on Optical Networks, IEEE Computer Society Press, Vancouver Canada, August 2002. Invited Paper. [Full Paper: .ps, .pdf] [Presentation: .ppt(animation included)]

H. Lee, H. Choi, and H.-A. Choi, Reconfiguration of Survivable Logical Topologies in WDM Ring Networks, Proc. 36th Conference of Information Science and Systems (CISS), Princeton University, March 2002. [Full Paper: .ps .pdf]

H. Lee, H. Choi, S. Subramaniam, and H.-A. Choi, Survival Embedding of Logical Topology in WDM Ring Networks, Proc. Symposium on Photonics, Networking and Computing, The 6th Joint Conference on Information Sciences (JCIS), Duke University, March 2002. [Full Paper: .ps, .pdf] [Presentation: .html, .ppt(animation included)]

H. Lee, H. Choi, S. Subramaniam, and H.-A. Choi, Survival Logical Topology Design in WDM Optical Ring Networks, Proc. 39th Allerton conference on communications, control, and computing, Univ. of Illinois at Urbana-Champaign, Oct. 2001. Invited Paper. [Full Paper: .ps, .pdf]

H. Choi, H. Lee, and H.-A. Choi, Design Issue on IP over WDM Networks, Proc. US-Korea Conference on Science, Technology and Entrepreneurship 2001, Boston, August 10-12, 2001.

H. Lee, H. Choi, and H.-A. Choi, Restoration in IP over WDM Optical Networks, Proc. 30th ICPP Workshop on Optical Networks, IEEE Computer Society Press, pages 263-268, September 2001. Invited Paper. [Full Paper: .ps, .pdf]

H. Lee, H. Choi, and H.-A. Choi, IP Restoration on WDM Optical Networks,Proc. 35th Conference of Information Science and Systems (CISS), vol 1, page 268, The Johns Hopkins University, March 2001. [Full Paper: .ps, .pdf] [Presentation: .html, .ppt(animation included)]

H. Lee, and J. Song, A study on Prior Transfer Scheme and Hierarchical Virtual Ring for Moving Picture, Korean Information and System Society, Spring conference 1995.

H. Lee, and J. Song, CLSF (Connectionless Service Functions) topology, Korean Information and System Society, Fall conference 1994.

Technical Reports

H. Lee, IPv6 Security over ATM, George Washington University, December 1998. [Presentation: .htm, .ppt]

H. Lee, ATM Firewall Routers with Black Lists, George Washington University, December 1997. [Presentation: .html, .ppt]

Teaching

  • ITEC650 Networking Concepts (spring 2006; spring 2008) - Graduate Course
  • ITEC452 Distributed Computing (every fall semester since 2008)
  • ITEC451 Network Design and Analysis (every spring semester since 2009)
  • ITEC350 Introduction to Computer Networking (every semester since spring 2004)
  • ITEC324 Principles of Computer Science III (former ITEC224; since fall 2008)
  • ITEC224 Principles of Computer Science III (every semester from fall 2003 til spring 2008)
  • ITEC220 Principles of Computer Science II (fall 2006; spring 2007; spring 2008)
  • ITEC120 Principles of Computer Science I (fall 2003; fall 2005)

Contact


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