Cooperative Jamming for Secrecy in Decentralized Wireless Networks

Sean Zhou (ANU)

APPLIED SIGNAL PROCESSING SERIES

DATE: 2012-07-26
TIME: 11:00:00 - 12:00:00
LOCATION: RSISE Seminar Room, ground floor, building 115, cnr. North and Daley Roads, ANU
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ABSTRACT:
Guaranteeing security in wireless networks is a fundamental challenge due to the broadcast nature of the communication medium. The commonly used encryption-based approaches rely on high computational complexity to provide secrecy without exploiting the properties of the wireless channels. On the other hand, the notion of physical layer security was developed from information-theoretic studies where "perfect" secrecy can be achieved without the use of encryption. The key idea of this technique is to achieve a better channel condition at the legitimate receiver compared to that at the eavesdropper. In this talk, we will discuss one method of realizing this idea in large-scale wireless networks with no centralized coordination.
BIO:
Sean received his PhD at ANU in 2010, then did a postdoc for one year in Norway. Currently he is a research fellow at ANU. His primary research interests are in the fields of communication theory, wireless communications, and wireless networking.