Work

Optimal Pilot Length for Key Generation in Correlated Wireless Channels

Year: 2024

Type: article

Abstract: This letter examines the optimal pilot length for key generation in correlated wireless channels. We first deduce the secret key capacity as a function of the pilot length N and other system parameters. Then, derive two fixed-point equations to identify the optimal N with and without an eavesdropper. Our analysis and numerical results confirm the existence of the optimal N that maximizes the secret key capacity, and both results for optimal N are consistent. Furthermore, the optimal N generally decreases with average signal-to-noise ratio and maximum Doppler shift. Our examination can provide useful guidelines in designing practical key generation systems.

Source: IEEE Wireless Communications Letters

DOI: 10.1109/lwc.2024.3444821

Authors: Danqi Li, Shihao Yan, Jia Zhang, Jiande Sun, Feng Shu

Institutions: Nanjing University of Science and Technology, Edith Cowan University, Shandong Normal University

Language: English

Topic: Wireless Communication Security Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4401634885

FWCI:

Cites: 16

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Related to: 10