Research

My research is in the broad areas of network security and traffic control, and their intersection. Specific problems of interest include:

malware
critical infrastructure attacks and protection
measurement-based traffic classification and modeling
web filtering
intrusion detection and modeling

Security-related Publications:

T. Chen, J-C. Sanchez-Aarnoutse, J. Buford, "Petri nets models for cyber-physical attacks in smart grid," IEEE Trans. on Smart Grid, vol. 2, Dec. 2011, pp. 741-749
T. Chen, "Information warfare," tutorial at IEEE Globecom 2011, Nov. 2011
S. Abu-Nimeh, T. Chen, O. Alzubi, "Malicious and spam posts in online social networks," IEEE Computer, vol. 44, Sept. 2011, pp. 23-28
T. Chen, "Cyber crime," The House (magazine for UK House of Parliament), vol. 36, May 2, 2011, p. 32
T. Chen, S. Abu-Nimeh, "Lessons from Stuxnet," IEEE Computer, vol. 44, April 2011, pp. 79-81
S. Abu-Nimeh, T. Chen, "Proliferation and detection of blog spam," IEEE Security and Privacy, vol. 8, Sept./Nov. 2010, pp. 42-47
T. Chen, N. Jamil, "A mathematical view of self-replicating malware," chapter in Handbook of Security and Networks, Y. Xiao, F. Li, H. Chen (eds.), World Scientific Publishing, to appear 2011
A. Olteanu, Y. Xiao, J. Liu, T. Chen, "Studying non-intrusive tracing in the Internet," 7th Int. ICST Conf. on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine 2010), Houston, November 17-19, 2010
T. Chen, "Survey of cyber security issues in smart grids", SPIE Defense, Security and Sensing (DSS 2010), Orlando, April 5-9, 2010, pp. 77090D
T. Chen, V. Wang, "Web filtering and censoring," IEEE Computer, vol. 43, March 2010, pp. 77-80
T. Chen, J. Buford, "Design of a honeypot for SQL injection attacks," 5th IEEE LCN Workshop on Security in Communication Networks (SICK 2009), Zurich, Oct 2009, pp. 915-921
N. Jamil, T. Chen, "A mathematical view of network-based suppressions of worm epidemics," IEEE ICC 2009, Dresden, June 14-18, 2009, pp. 1-5
T. Chen, "Identity theft through the Web," chapter in Handbook of Research on Computational Forensics, Digital Crime and Investigation: Methods and Solutions, C.-T. Li (ed.), IGI Global, 2009
H. Patil, D. Wing, T. Chen, "VoIP security," chapter in Computer and Information Security Handbook, J. Vacca (ed.), Morgan Kaufmann, 2009
T. Chen, P. Walsh, "Guarding against network intrusions," chapter in Computer and Information Security Handbook, J. Vacca (ed.), Morgan Kaufmann, 2009
C. Chen, T. Chen, R. Sethi, "Spam e-mail detection and classification: a Bayes/empirical Bayes approach," ASA Joint Statistical Meeting 2008, Denver, Aug. 3-7, 2008
T. Chen, J. Fu, "Protection of privacy on the Web," chapter in Handbook of Research on Social and Political Implications of Data Mining and Information Privacy: Interdisciplinary Frameworks and Solutions, E. Eyob (ed.), IGI Global, 2008 [PDF]
T. Chen, G. Tally, "Network worms," chapter in Encyclopedia of Information Science and Technology, 2nd ed., M. Khosrow-Pour (ed.), IGI Global, 2008 [PDF]
T. Chen, C. Davis, "An overview of electronic attacks," chapter in Information Security and Ethics: Concepts, Methodologies, Tools and Applications, H. Nemati (ed.), IGI Global, 2008 [PDF]
T. Chen, "Information security and risk management," chapter in Encyclopedia of Multimedia Technology and Networking, 2nd ed., M. Pagani (ed.), IGI Global, 2008 [PDF]
T. Chen, C. Peikari, "Malicious software in mobile devices," chapter in Handbook of Research on Wireless Security, Y. Zhang, J. Zheng, M. Ma (eds.), IGI Global, 2008 [PDF]
R. Chitnis, T. Chen, "Protection against identity threats in early IP multimedia subsystem (IMS)," chapter in IEC Annual Review of Communications, vol. 60, Jan. 2008
H. Patil, T. Chen, "Authentication in session initiation protocol," chapter in IEC Annual Review of Communications, vol. 60, Jan. 2008
T. Chen, G-S. Kuo, Z-P. Li, G-M. Zhu, "Intrusion detection in wireless mesh networks," chapter in Security in Wireless Mesh Networks, Y. Zhang, J. Zheng, H. Hu (eds.), CRC Press, 2007 [PDF]
T. Chen, N. Nguyen, "Authentication and privacy," chapter in Encyclopedia of Wireless and Mobile Communications, B. Furht (ed.), CRC Press, 2007 [PDF]
T. Chen, G. Tally, "Malicious software," chapter in Encyclopedia of Internet Technologies and Applications, M. Freire, M. Pereira (eds.), IGI Global, 2007 [PDF]
N. Jamil, T. Chen, "A Web-based network worm simulator," IEEE ICC 2007, June 25-27, 2007, Glasgow [PDF]
G. Tally, D. Sames, T. Chen, C. Colleran, D. Jevans, K. Omiliak, R. Rasmussen, "The Phisherman project: creating a comprehensive data collection to combat phishing attacks," J. of Digital Forensic Practice, vol. 1, June 2006, pp. 115 - 129 [PDF]
T. Chen, N. Jamil, "Worm epidemiology," China Communications, vol. 3, August 2006, pp. 27-31 [PDF]
N. Jamil, T. Chen, "Effectiveness of rate control in slowing down worm epidemics," Globecom 2006, Nov. 27-30, 2006, San Francisco [PDF]
T. Chen, N. Jamil, "Effectiveness of quarantine in worm epidemics," ICC 2006, June 11-15, 2006, Istanbul, Turkey [PDF]
T. Chen, "An epidemiological view of worms and viruses," chapter in IEC Annual Review of Communications, vol. 59, Fall 2006 [PDF]
T. Chen, C. Davis, "An overview of electronic attacks," chapter in Digital Crime and Forensic Science in Cyberspace, P. Kanellis, E. Kiountouzis, N. Kolokotronis, D. Martakos (eds.), IGI Global, 2006 [PDF]
T. Chen, V. Venkataramanan, "Dempster-Shafer theory for distributed intrusion detection in ad hoc networks," IEEE Internet Computing, vol. 9, Nov./Dec. 2005, pp. 35-41 [PDF]
T. Chen, "The latest malware threats against your PC," talk at Southern Methodist University, October 11, 2005 [PDF]
T. Chen, "How to avoid losing your money and identity to phishing," talk at Southern Methodist University, February 16, 2005 [PDF]
T. Chen, "Towards end-to-end security," chapter in IEC Annual Review of Communications, vol. 58, Fall 2005 [PDF preprint]
T. Chen, M. Elder, J. Thompson, "Electronic attacks," chapter in The Handbook of Information Security, Hosain Bidgoli (ed.), John Wiley & Sons, 2005 [PDF preprint]
T. Chen, "Phishing to steal your PC, money and identity," talk at London Metropolitan University, December 8, 2004 [PDF]
T. Chen, "Parallels between computer and biological epidemics," talk at London Metropolitan University, November 11, 2004 [PDF]
T. Chen, "Malware research at SMU," talk at BT, November 5, 2004 [PDF]
T. Chen, "Research in computer viruses and worms," talk at London Metropolitan University, October 6, 2004 [PDF]
T. Chen, "Network-based intrusion detection," talk at Beijing University of Posts and Telecom, August 9, 2004 [PDF]
T. Chen, "Viruses and worms," talk at Beijing University of Posts and Telecom, August 10, 2004 [PDF]
T. Chen, "Denial of service," talk at Beijing University of Posts and Telecom, August 11, 2004 [PDF]
T. Chen, "Intrusion detection for viruses and worms," chapter in IEC Annual Review of Communications, vol. 57, Fall 2004 [PDF preprint]
T. Chen, J-M. Robert, "The evolution of viruses and worms," chapter in Statistical Methods in Computer Security, William Chen (ed.), Marcel Dekker, 2004 [PDF preprint]
T. Chen, J-M. Robert, "Worm epidemics in high-speed networks," IEEE Computer, vol. 37, June 2004, pp. 48-53 [PDF]
T. Chen, "Intrusion detection in mobile ad hoc networks," talk at Rockwell Collins, May 20, 2004 [PDF]
T. Chen, "Trends in viruses and worms," Internet Protocol Journal, vol. 6, Sept. 2003, pp. 23-33 [PDF]
T. Chen, "Trends in viruses and worms," talk to IEEE Computer Society Dallas Section, Oct 16, 2003 [PDF]

Traffic-related Publications:

E. Serpedin, T. Chen, D. Rajan (eds.), Mathematical Foundations for Signal Processing, Communications, and Networking, CRC Press, 2012
T. Chen, "Queueing theory," chapter in Mathematical Foundations for Signal Processing, Communications, and Networking, E. Serpedin, T. Chen, D. Rajan (eds.), CRC Press, 2012
J. He, Z. Tang, T. O'Farrell, T. Chen, "Performance analysis of DSRC priority mechanism for road safety applications in vehicular networks," Wireless Communications and Mobile Computing Journal, vol. 11, July 2011, pp. 980-990
T. Chen, J. Buford, "Services in smart grids," chapter in Advances in Next Generation Services and Service Architectures, A. Prasad, J. Buford, V. Gurbani (eds.), River Publishers, April 2011
J. He, H.-H. Chen, T. Chen, W. Cheng, "Adaptive congestion control for DSRC vehicle networks," IEEE Communications Letters, vol. 14, Feb. 2010, pp. 127-129
Y. Zeng, T. Chen, "Classification of traffic flows into QoS classes by unsupervised learning and KNN clustering," KSII Trans. on Internet and Information Systems, vol. 3, no. 2, April 2009, pp. 134-146
Y. Zhang, S. Mao, L. Yang, T. Chen (eds.), Broadband Mobile Multimedia: Techniques and Applications, CRC Press (Taylor & Francis Group), 2008
T. Chen, "From circuit switched to IP-based networks," chapter in Encyclopedia of Multimedia Technology and Networking, 2nd ed., M. Pagani (ed.), IGI Global, 2008 [PDF]
T. Chen, "Traffic control," chapter in Encyclopedia of Internet Technologies and Applications, M. Freire, M. Pereira (eds.), IGI Global, 2007 [PDF]
T. Chen, "Network traffic modeling," chapter in Handbook of Computer Networks, H. Bigdoli (ed.), Wiley, 2007 [PDF]
T. Chen, "Network traffic management," chapter in Handbook of Computer Networks, H. Bigdoli (ed.), Wiley, 2007 [PDF]
J. Ko, T. Chen, "A decision theoretic approach to measurement-based admission control," ICC 2006, June 11-15, 2006, Istanbul, Turkey [PDF]
H. ElAdly, T. Chen, “Enhancing the support of multi hopping in an IEEE 802.11 ad-hoc network,” 9th IEEE Symposium on Computers and Communications (ISCC 2004), Alexandria, June 29 - July 1, 2004, pp. 158-163 [PDF]
Y. Zeng, T. Chen, “Measurement-based real-time traffic model classification,” ICC 2004, June 21-25, 2004, Paris, France, pp. 1857-1861 [PDF]
H. ElAdly, T. Chen, “An overlay algorithm to improve the support of multi-hopping in the IEEE 802.11 WLANs,” ICC 2004, June 21-25, 2004, Paris, France, pp. 3817-3821 [PDF]
N. Sadek, A. Khotanzad, T. Chen, “Adaptive measurement-based admission control using neural network predictor,” IEEE Canadian Conference on Electrical and Computer Engineering 2004 (CCECE 2004), May 2-5, 2004, Ontario, Canada
H. ElAdly, T. Chen, “Performance modeling of overlapping IBSSs in the IEEE 802.11 DCF mode,” presented at 46th IEEE Int. Midwest Symp. on Circuits and Systems (MWSCAS), Dec. 27-30, 2003, Cairo, Egypt, pp. 486-489 [PDF]
N. Sadek, A. Khotanzad, T. Chen, “ATM dynamic bandwidth allocation using F-ARIMA prediction model,” 12th International Conf. on Computer Communications and Networks (ICCCN 2003), Oct. 20-22, 2003, pp. 359-363 [PDF]
T. Chen, S. Liu, "ATM Switching," chapter in Wiley Encyclopedia of Telecommunications, John Proakis (ed.), Wiley, Dec. 2002 [PDF]
Y. Zeng, T. Chen, "Automatic classification of measured Internet traffic," IEEE Workshop on IP Operations and Management 2002 (IPOM 2002), October 29-31, 2002, Dallas, TX, pp. 197-201 [PDF]
T. Chen, L. Hu, "Internet performance monitoring," Proceedings of the IEEE, vol. 90, Sept. 2002, pp. 1592-1603 [PDF]
T. Chen, S. Liu, "A model and evaluation of distributed network management approaches," IEEE J. on Selected Areas in Commun., vol. 20, May 2002, pp. 850-857 [PDF]
T. Chen, "Internet computing as a utility," IEEE Communications Mag., vol. 40, May 2002, p. 10 [PDF]
H. Tran, T. Chen, "Theoretical network load limit when self-similarity has no adverse effect on the network," 2001 IEEE Workshop on High Performance Switching and Routing (HPSR 2001), May 29-31, 2001, Dallas, pp. 135-140 [PDF]
Y. Zhu, T. Chen, S. Liu, "Models and analysis of trade-offs in distributed network management approaches," 7th IFIP/IEEE Int. Symp. on Integrated Network Management (IM 2001), Seattle, May 14-18, 2001, pp. 391-404 [PDF]
T. Chen, "Increasing the observability of Internet behavior," Communications of the ACM, vol. 44, January 2001, pp. 93-98 [PDF]
T. Oh, T. Chen, J. Kennington, "Fault restoration and spare capacity allocation with QoS constraints for MPLS networks," IEEE Globecom 2000, San Francisco, Nov. 27- 30, 2000, pp. 1731-1735 [PDF]
T. Chen, S. Liu, M. Procanik, "Method and system for monitoring broadband quality of services," US patent no. 6,097,699, issued Aug. 1, 2000 [PDF]
T. Chen, "Evolution to the programmable Internet," IEEE Communications Mag., vol. 38, March 2000, pp. 124-129 [PDF]
T. Chen, T. Oh, "Reliable services in MPLS," IEEE Communications Mag., vol. 37, Dec. 1999, pp. 58-62 [PDF]
T. Chen, "Characterization of ATM on-off traffic from cell traffic measurements," 3rd IEEE Int. Workshop on Broadband Switching Systems (BSS'99), Kingston, Ontario, June 1-3, 1999, pp. 53-57 [PDF]
N. Yamanaka, E. Oki, H. Hasegawa, T. Chen, "User-programmable flexible ATM network architecture, Active-ATM," IEICE Trans. on Communications, vol. E81-B, no. 11, Nov. 1998, pp. 2233-2236 [PDF]
T. Chen, S. Liu, "Method and apparatus for performance monitoring in electronic communications networks," US patent no. 5,793,976, issued August 11, 1998 [PDF]
N. Yamanaka, E. Oki, H. Hasegawa, T. Chen, "Active-ATM: user-programmable flexible ATM network architecture," ICC'98 Workshop on Active and Programmable Networks, Atlanta, GA, June 11, 1998.
T. Chen, S. Liu, M. Procanik, D. Wang, D. Casey, "INQIRE: a software approach to monitoring QoS in ATM networks," IEEE Network Mag., vol. 12, March/April 1998, pp. 32-37 [PDF]
T. Chen, S. Liu, D. Wang, V. Samalam, M. Procanik, D. Kavouspour, "Monitoring and control of ATM networks using special cells," IEEE Network Mag., vol. 10, Sept./Oct. 1996, pp. 28-38 [PDF]
T. Chen, S. Liu, V. Samalam, "The available bit-rate service for data in ATM networks," IEEE Communications Mag., vol. 34, May 1996, pp. 56-71 [PDF]
T. Chen, V. Samalam, "Time-dependent behavior of fluid buffer models with Markov input and constant output rates," SIAM Journal on Applied Mathematics, vol. 55, pp. 784-799, June 1995 [PDF]
T. Chen, J. Walrand, D. Messerschmitt, "Parameter estimation for partially observed queues," IEEE Trans. on Communications, vol. 42, pp. 2730-2739, Sept. 1994 [PDF]
T. Chen, S. Liu, "Management and control functions in ATM switching systems," IEEE Network Mag., vol. 8, pp. 27-40, July/Aug. 1994 [PDF]
T. Chen, J. Walrand, D. Messerschmitt, "Dynamic priority protocols for packet voice," IEEE J. on Selected Areas in Communications, vol. 7, pp. 632-643, June 1989 [PDF]
T. Chen, "On the independence of sojourn times in tandem queues," Advances in Applied Probability, vol. 21, pp. 488-489, June 1989 [PDF]
T. Chen, D. Messerschmitt, "Integrated voice/data switching," IEEE Communications Mag., vol. 26, pp. 16-26, June 1988 [PDF]

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