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In this talk, the issue of secure data transmission over noisy channels is discussed. Unlike the traditional approach based on cryptography at a higher layer, we will use a capacity achieving code named polar code for reliable and secure data transmission. The fundamentals of polar codes are first reviewed. Then a new polar coding-based approach to improve the secrecy data rate is proposed. In this approach, we will enhance the performance of secure polar coding by additionally utilizing some simple coding schemes. This new approach will give us useful insights into the fundamental concepts of polar coding and secure polar coding. Finally, we will consider the scenario where the eavesdropper’s channel information is unknown to the transmitter. To make the secure data transmission possible by polar codes for this scenario, we propose a double layer polar coding, and we analytically show that it is information theoretically secure and it achieves the secrecy capacity of the ergodic fading channel. |
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Il-Min Kim received the B.Sc. degree in electronics engineering from Yonsei University, Seoul, in 1996, and the M.S. and Ph.D. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Taejon, in 1998 and 2001, respectively. From October 2001 to August 2002, he was with the Department of Electrical Engineering and Computer Sciences, MIT, Cambridge, MA, and from September 2002 to June 2003, he was with the Department of Electrical Engineering, Harvard University, Cambridge, MA, as a Postdoctoral Research Fellow. In July 2003, he joined the Department of Electrical and Computer Engineering, Queens University, Kingston, Canada, where he is currently a Professor. His current research interests include energy harvesting, physical layer security, polar coding, compressive sensing, and military radars/communications. Dr. Kim was as an Editor for the IEEE Transaction on Wireless Communications from 2005 to 2011. He is currently serving as an Editor for the IEEE Wireless Communications Letters and as an Editor for the Journal of Communications and Networks (JCN). He has received many awards including a best paper award in UBICOMM, Rome, 2014. |
Copyright ⓒ 2015 KAIST Electrical Engineering. All rights reserved. Made by PRESSCAT
Copyright ⓒ 2015 KAIST Electrical Engineering. All rights reserved. Made by PRESSCAT
Copyright ⓒ 2015 KAIST Electrical
Engineering. All rights reserved.
Made by PRESSCAT
