Wireless Physical Layer Security, From Theory to Practice

Speaker:  Moustafa A Youssef – New Borg Elarab City, Alexandria, Egypt
Topic(s):  Networks and Communications

Abstract

Despite recent progress, the vulnerability of wireless networks to security threats remains a major obstacle hindering the adoption of wireless technologies in various military, scientific, national security, and civilian applications. In this talk, we present our recent work on adopting information theoretic physical layer security concepts into networking protocols to achieve provably-secure, yet practical, communication protocols. In particular, the wireless medium is characterized by a multitude of effects which range from the multi-path fading, resulting from the signal reflections, to the interference caused by other users sharing the same (or neighboring) frequency bands. In the traditional approach, these phenomena were considered impairments that should be overcome by the physical layer of the communication network. Our work adopts a novel perspective which exploits the wireless channel to create an advantage for the legitimate receiver over the adversary in a practical manner.

We show how wireless physical layer security, based on the principles of feedback and cooperation with eavesdropper jamming, can be used to design a range of security protocols for different wireless technologies including WiFi, RFID, and sensor networks. Our implementation and evaluation shows that significant security gains can be achieved with limited effect on performance, highlighting the potential of the proposed techniques. 

About this Lecture

Number of Slides:  40
Duration:  60 minutes
Languages Available:  Arabic, English
Last Updated: 

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