An Investigation of Using Loop-back Mechanism for Channel Reciprocity Enhancement in Secret Key Generation
Linning Peng, Guyue Li, Junqing Zhang, Roger Woods, Ming Liu, Aiqun Hu
2018
IEEE Transactions on Mobile Computing
Physical layer security key generation exploits unpredictable features from wireless channels to achieve high security, which requires high reciprocity in order to set up symmetric keys between two users. This paper investigates enhancing the channel reciprocity using a loop-back scheme with multiple frequency bands in time-division duplex (TDD) communication systems, in order to mitigate the effect of hardware fingerprint interference and synchronization offset. The scheme is evaluated to be
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... bust to passive eavesdropping and active Man-in-the-Middle attack through both theoretical analyses and practical measurements. A secret key generation protocol is subsequently designed. The performance of the proposed secret key generation method is then evaluated through both numerical simulation and experiments. Results demonstrate that the proposed scheme can effectively mitigate non-reciprocity and outperforms the classical TDD scheme in both key disagreement rate and key generation rate. Roger WOODS (M'95-SM'01) received the B.Sc degree (Hons.) in Electrical and Electronic Engineering and the Ph.D. degree from the Queen's University of Belfast in 1985 and 1990, respectively. He is currently a Full Professor with Queen's University of Belfast, and Research Director of the Electronics and Computer Engineering cluster. His research interests are in accelerated data analytics and heterogeneous programmable systems for signal processing and wireless communication systems. He holds 4 patents and has authored over 220 papers. He is a member of the IEEE Signal Processing and Industrial Electronics Societies and is on the Advisory Board for the IEEE SPS Technical Committee on the Design and Implementation of Signal Processing Systems. Ming LIU received the B.Eng. and M.Eng. degrees from Xi'an Jiaotong University, China, in 2004 and 2007, respectively, and the Ph.D. degree from the National Institute of Applied Sciences (INSA), Rennes, France, in 2011, all in Electrical Engineering. He was with the Institute of Electronics and Telecommunications of Rennes (IETR) as a postdoctoral researcher from 2011 to 2015. He is now with Beijing Jiaotong University, China, as an Associate Professor. His main research interests include massive MIMO, space-time coding and physical layer security. Aiqun HU received the PhD degree from Southeast University, Nanjing, China in 1993. He is a Full Professor at Southeast University. His research interests are in wireless network technology and physical layer security of wireless communications. He has published extensively in high quality transactions and Chinese top level journals, and holds numerous patents in wireless technology.
doi:10.1109/tmc.2018.2842215
fatcat:fk5wmnirlfdzlmt7wp63tozd24