Deputy Editor-in-Chief of the IEEE Transactions CAS-I, January 2004-December 2005.

Founding member of the editorial board of “AKCE International Journal of Graphs and Combinatorics”, published from Madurai, India, 2004- to date.

Associate Editor, IEEE Trans. on Circuits and Systems, 1999–2001.

Founding Regional Editor, Journal of Circuits, Systems, and Computers (Publisher: World Scientific Publishing Company, Singapore) (1990–2002).

Editor, Proceedings of the IEEE International Symposium on Circuits and Systems, Orlando, June 1999.

Editor, Proceedings of the IEEE International Symposium on Circuits and Systems, Chicago, May 1993.

Associate Editor, IEEE Trans. Circuits and Systems, 1989–91.

Guest Editor of a special issue of the IEEE Transactions on Circuits and Systems on “Computational Graph Theory: Algorithms and Applications”, (Co-editor: Professor Narsingh Deo, Dept. of Computer Science, University of Central Florida, Orlando, Florida, U.S.A.), March 1988.

Associate Editor, Canadian Electrical Engineering Journal, (1985 – 87).