Physical Layer Security: Error Control Coding for Information Theoretic Security in Wireless and Beyond

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The research. The research topics in this proposal are: 1) Fundamentals for the wiretap channel:error control codes for reliability and security, 2) Opportunistic wireless physical-layer security, 3) Highlyreliable and secure distributed data storage. In all areas the focus is not only on theory but on practicalalgorithms to achieve the very high levels of security and reliability promised by information theory.The PI and collaborations: About half of the work in this proposal will be done with collaboratorsin Europe connected to the Georgia Tech Lorraine (GTL) campus in Metz, France where the PI wasformerly Director of Research and currently Deputy Director. In March 2006, the PI and his colleagues, inpartnership with the French Centre National de Recherche Scientifique (CNRS), established a joint researchcenter dedicated to international collaborations in secure networks and advanced materials, the first suchcenter of its kind in France. This center hosts fifteen people and ten projects from four institutions. Thewireless portion of this proposal will be done in collaboration with colleagues at the University of Porto (J.Barros) and Cambridge University (M. Rodrigues). The international component of our project createsopportunities and challenges. For example, the landscape for recruiting and educating graduate studentstoday is characterized by i) decreases in the students applying to US universities, particularly from Chinaand India, and ii) a lack of US students getting meaningful engineering educational and research experienceoutside the US. We believe this project, coupled with the GTL campus in France, can address some ofthese challenges and help create future engineers, educators and researchers with a more global perspective.The broader impact of this project has two dimensions: i) global connections with a pathway tocommercialization of new wireless security concepts; and ii) new models for training graduate studentsacross national boundaries. The students and faculty would participate in new and long-lasting internationalresearch and educational activities. These students will have a much more global perspective, have theopportunity to interact on a long-term basis with European students and faculty, and the project wouldserve to identify (for companies, universities and government agencies) outstanding people with a globalperspective. This model addresses the changing landscape and needs of student and faculty in the US andabroad.The intellectual merit is in new approaches to physical layer communications, from both theoreticaland practical perspectives. The notion of a highly secure and reliable physical layer has the potential tosignificantly change how people think of the physical layer. The error control codes in this work will havethe dual roles of reliability and security, adding a new dimension to a subject that has been studiedextensively for more than 60 years. We believe the research presented here will result in changes in howclassical communication systems are perceived and used, and is the next natural step in higherperformance, physical layer communication systems.