Journal Home Online First Current Issue Archive For Authors Journal Information 中文版

2023, Volume 24, Issue 12

Abstract

Keywords

Related Research

Back to Top

Frontiers of Information Technology & Electronic Engineering >> 2023, Volume 24, Issue 12 doi: 10.1631/FITEE.2300126

Pattern-reconfigurable antenna-assisted secret key generation from multipath fading channels

1.PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China ;; 2.Purple Mountain Laboratories for Network and Communication Security, Nanjing 210096, China

Received: 2023-02-28 Accepted: 2024-01-24 Available online: 2024-01-24
HTML0 PDF 1 Collect 0

Next Previous

Abstract

Physical layer key generation (PKG) technology leverages reciprocal channel randomness to generate shared secret keys. However, at the receiver may degrade the correlation between legitimate uplink and downlink channels, resulting in a low key generation rate (KGR). In this paper, we propose a PKG scheme based on the (PRA) to boost the secret key capacity. First, we propose a (RIS) based PRA architecture with the capability of flexible and reconfigurable antenna patterns. Then, we present the PRA-based PKG protocol to improve the KGR via mitigation of the effects of . Specifically, a novel algorithm for estimation of the multipath channel parameters is proposed based on atomic norm minimization. Thereafter, a novel optimization method for the matching reception of multipath signals is formulated based on the improved binary particle swarm optimization (BPSO) algorithm. Finally, simulation results show that the proposed scheme can resist and achieve a high KGR compared to existing schemes. Moreover, our findings indicate that the increased degree of freedom of the antenna patterns can significantly increase the secret key capacity.

Related Research