Plenary Lecture

New Directions in the Design of Secure Wireless Systems Using Chaotic Signals and Interference Mitigation Techniques

Professor Peter Stavroulakis
Technical University of Crete,
Chania
GREECE
Telephone +30 28210 37333, +30 210 9651154
E-mail: pete_tsi@yahoo.gr
 

Abstract: One can say that the subject of security is as old as the subject of communications. In the area of wireless communications, Microwave radio from its introduction in the late 1940 to the present has become one of the primary media for transmitting information from point to point and from a point to a given area. The advent of Satellite communications technology in 1962 and consequent sharing of bands between satellite and radio relay coupled with the explosive growth of Microwave radio routes and mobile communications has led to increased sharing of frequency spectrum and to generation of increased mutual interference. This added interference is playing a dominant role in limiting the capacity, efficiency, reliability, security and cost of modern communication systems. Thus we now have an added problem in Wireless systems which for Satellite Communications has been coded as space security.
Security is of major concern of the environment in which various communication systems coexist either in the same or adjacent frequency bands and is also caused by non-ideal mainly nonlinearity mechanisms utilized in the process of communication. The subject of interference has become again an important area of major concern in recent years related to Security due to the widespread use of mobile and wireless terrestrial systems for voice communication. Having studied and solved the problem of sending the information reliably, it was then necessary to study ways to transmit the information securely. For wireless mobile systems this problem was partially solved by using various encryption techniques. In this tutorial we shall present a review of the areas that require further study and we will show for the first time why the existing security mechanisms including cryptography do not necessarily solve the security problems in various wireless systems. We shall propose ways to move forward using as an example a new methodology based on Chaotic techniques. This methodology is based on two recent books by the author and an International Patent by the author which what was thought as an impossible task i.e to make chaotic signal based secure communications robust is now proved possible. This Tutorial will benefit young researchers, designers of large scale Secure Telecom Systems such as those used in World class events as are the Olympic Games and University Instructors who are seeking to put together instruction material for new courses.

Brief Biography of the Speaker:
Peter Stavroulakis received his BS and Ph.D. degrees from New York University in 1969 and 1973 respectively and his MS degree from California Institute of Technology in 1970.

He joined Bell Laboratories in 1973 and worked until 1979 when he joined Oakland University in Rochester Michigan as an associate Professor of Engineering.
He worked at Oakland University until 1981 when he joined ATT International and subsequently NYNEX International until 1990. From 1990 to present he has been at Technical University of Crete.
He joined the Technical University of Crete (TUC) Greece as a full Professor of Electrical Engineering in may 1990. His work at Bell Labs and Oakland University resulted in the publication of an IEEE reprint book on Interference Analysis of Communication Systems and the publication of a number papers in the general area of telecom systems. He is also the Author/Editor of twelve other Books in the general Area of Telecommunication Systems. He has presented many Tutorials in International Conferences on security Applications in Telecommunications the second. While at ATT and NYNEX he worked as a Technical Director whose responsibility was to lead a team dealing with techno-economic studies on various large National and International Telephone Systems and Data Networks. When he joined TUC, he led the team for the development of the Technology Park of Chania and has had various administrative duties besides his teaching and research responsibilities. Prof. Stavroulakis is the founder of the Telecommunication Systems Institute of Crete, a research center for the training of Ph.D. students in Telecommunications, associated with and in close collaboration with various research centers and Universities in Europe and U.S.A. He now has a very large research team, the work of which is funded by various public and private sources including European Union. He is a member of the Editorial Board of the International Journal of Communications, International Journal of Satellite Systems and Networking and has been a reviewer for many Technical International Journals. His current research interests are focused on the application of various heuristic methods on Telecommunications, including Neural Networks, Fuzzy Systems and Genetic Algorithms and Chaos also in the development of new schemes to increase security in Mobile and Wireless Systems. Recently he has become Member of the Editorial Board of CHINA COMMUNICATIONS and a Leading Turkish Electronics Journal.