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Physical layer secure transmission optimization method and device based on frequency control array

A technology for physical layer security and secure transmission, applied in transmission monitoring, transmission systems, electrical components, etc., and can solve problems such as low security

Active Publication Date: 2021-07-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, there is a difference between the Gaussian signal and the input signal of the digital communication system in practical applications, which leads to the low security of the physical layer security transmission system determined by the Gaussian signal as the input signal in practical applications

Method used

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  • Physical layer secure transmission optimization method and device based on frequency control array
  • Physical layer secure transmission optimization method and device based on frequency control array
  • Physical layer secure transmission optimization method and device based on frequency control array

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0024] Physical Layer Security (Physical Layer Security, PLS) refers to the secure transmission of wireless communication through rational design of channel coding, so that eavesdroppers cannot receive valuable information.

[0025] Frequency Diverse Array (FDA) is a multi-antenna array structure that can be used to implement beamforming in practical communication systems. The frequency control array uses different transmission frequencies on each antenna element. Since each antenna uses a different transmission frequency, the energy distribution of the frequency control array beam is no longer only related to the angle, but also related to the distance, thus forming a distance and angle-dependent beam patterns. By rationally designing the frequency offset vector of each antenna, the frequency stee...

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Abstract

The invention provides a physical layer secure transmission optimization method and device based on a frequency control array, electronic equipment and a storage medium. The method comprises the following steps that a secure transmission rate optimization model is established according to a limited character input signal and a preset channel model; and the preset precoding vector and the preset frequency offset vector in the secure transmission rate optimization model are alternately optimized, the optimized precoding vector and the optimized frequency offset vector are determined, and the optimized secure transmission rate is calculated, so that the security of the physical layer secure transmission system in practical application is improved.

Description

technical field [0001] The present application relates to the communication field, and in particular, relates to a frequency control array-based physical layer security transmission optimization method, device, electronic equipment, and storage medium. Background technique [0002] In recent years, with the development of wireless communication technology, the data traffic in wireless network shows an exponential growth. With the continuous improvement of the reliability and effectiveness of communication systems, people pay more and more attention to the security of data transmission. Due to the broadcast characteristics of wireless channels, wireless communication systems are vulnerable to information leakage caused by eavesdropping attacks. [0003] At present, physical layer security transmission technology is usually used to improve the security of data transmission in wireless communication systems. With the development of multi-antenna technology, frequency control ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04B17/391
CPCH04L63/16H04L63/20H04B17/391
Inventor 吴胜欧阳崇峻李海涵纪哲杨鸿文
Owner BEIJING UNIV OF POSTS & TELECOMM
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