Tutorial on Cognitive Radio Network Security, IEEE Sarnoff Symposium 2009, Princeton, NJ.
Panelist (invited), Security Issues in Cognitive Radio Networks, Panel on Cognitive Radio Wireless Networking: An Emerging Frontier, at IEEE International Conference on Communications (ICC) 2008, Beijing China.
Founding Associate Editor, IEEE Transactions on Cognitive Communications and Networking, (2015 --)
Associate Editor, IEEE Transactions on Vehicular Technology, (August 2013 -- May 2016)
IEEE International Conference on Information Technology: Research and Education, 2003.
IEEE International Conference on Information Technology: Coding and Computing, 2001,2002.
Detecting Lies on the Internet, IEEE Conference on Information Security, Cyber Security and Privacy, Nov. 12, 2014.
Wireless & Information Systems Security, Idaho National Laboratory, January 2014
Internet Lurkers: Large-Scale Measurements and Modeling, University of California Los Angeles, December 4, 2012.
Recent Results in Cognitive Radio Network and Social Network Security, Applied Communication Sciences (formerly Telcordia), February 2012.
Securing Dynamic Spectrum Access (DSA) Networks: Two Examples, King's College, June 2011, London, UK.
Binary Data Hiding Game, Purdue University, West Lafayette, Indiana, October 21, 2008.
Error Correction and Encryption: Can they be combined?, Séminaire de Cryptographie, Institute of Mathematical Research of Rennes, University of Rennes 1, October 2007.
Error Correction and Encryption: Can they be combined?, Texas A&M University, September 2007.
Error Correction and Encryption: Can they be combined?, University of Texas at Arlington, September 2007.
Steganalysis of QIM-Based Data Hiding using Kernel Density Estimation", ACM Multimedia Security Workshop, September 2007.
A New Look at Wireless Security: Error Correcting Ciphers, IEEE Communications Society North Jersey Chapter Seminar, Dept. of ECEC, New Jersey Institute of Technology, February 2006.
Current Trends in Steganography, Center for Development of Advanced Computing, Kolkata, India, January 2006.
Joint Source-Channel Coding: An Alternative Method for Error Resilient Communications, IEEE Signal Processing Society Colloquium, Dept of E.E, UT-Dallas, TX, November, 2003, Sponsored by the IEEE Signal Processing Society, Dallas Chapter.