Constructing Reciprocal Channel Coefficients for Secret Key Generation in FDD Systems



Li, Guyue, Hu, Aiqun, Sun, Chen and Zhang, Junqing ORCID: 0000-0002-3502-2926
(2018) Constructing Reciprocal Channel Coefficients for Secret Key Generation in FDD Systems. IEEE COMMUNICATIONS LETTERS, 22 (12). pp. 2487-2490.

[img] Text
FDD_manuscript.pdf - Author Accepted Manuscript

Download (217kB)

Abstract

Physical layer-based key generation encounters the reciprocity bottleneck when applied in frequency-division duplexing (FDD) systems. This letter constructs the reciprocal channel characteristics of the uplink and downlink transmissions for key generation in FDD systems. The frequency dependence of propagation characteristics in both large-scale fading and small-scale fading is investigated. A general channel model is then established by considering frequency impact. A reciprocal channel construction framework is finally created. Numerical results demonstrate that our algorithm can construct bidirectional channel coefficients with high correlation and thus enable key generation technology to be used in FDD systems.

Item Type: Article
Uncontrolled Keywords: Physical layer security, secret key generation, reciprocal channel coefficient, frequency-division duplexing
Depositing User: Symplectic Admin
Date Deposited: 15 Oct 2018 09:34
Last Modified: 15 Mar 2024 14:44
DOI: 10.1109/LCOMM.2018.2875708
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3027560