Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A physical layer secure transmission method based on differential chaotic keying based on antenna selection

A differential chaotic keying and antenna selection technology, applied in radio transmission systems, transmission systems, digital transmission systems, etc., can solve the problem of sacrificing bit error performance, reduce complexity and dependence on channels, and improve security performance , high safety effect

Active Publication Date: 2021-09-24
NAT UNIV OF DEFENSE TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Theoretical analysis and simulation results show that compared with the existing MIMO-DCSK, the proposed method can not only improve the security of the system, but also has obvious advantages in spectral efficiency, but slightly sacrifices the bit error performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A physical layer secure transmission method based on differential chaotic keying based on antenna selection
  • A physical layer secure transmission method based on differential chaotic keying based on antenna selection
  • A physical layer secure transmission method based on differential chaotic keying based on antenna selection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be further described below in conjunction with drawings and embodiments.

[0040] Such as image 3 As shown, the present invention provides a physical layer encryption method of differential chaotic keying based on antenna selection, which is applied in a massive MIMO system and includes the following steps:

[0041] (S1) Generate key set K 1 and K 2 . Use the key extraction technology based on wireless channel characteristics to generate the initial value of x, substitute it into the Lorenz chaotic mapping system to generate a certain number of chaotic sequences, and choose an appropriate quantization method to quantize the chaotic sequence into a bit sequence, and intercept a certain length of bit sequence , so as to form the key set K required in this paper 1 and K 2 ; Common quantization methods in the prior art include threshold quantization and T transformation, which can be found in references ([1] ZHOU Hong, LING Xie-ting. Generat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of wireless network communication, and in particular relates to a physical layer security transmission method based on antenna selection-based differential chaos keying. The method is applied in a massive MIMO system, including the following steps: (S1) generating a key K 1 and K 2 ; (S2) establish the corresponding relationship between the memory address in the antenna index Book and the antenna selection and the grouping mode, and use the key K 2 Shuffle the correspondence between the memory address in the antenna index Book and the ASGM, and use the key K 1 Select from the antenna index Book with the key K 1 Corresponding antenna selection and grouping mode in the equal memory address; (S3) the sending end encrypts, determines two reference antennas, and divides the remaining antennas into two groups on average, and divides the information to be transmitted on the two groups of antennas into r 1 and r 2 Perform DCSK modulation, and finally transmit it from the antenna of the sending end of the massive MIMO system; (S4) Deciphering at the receiving end. The security of the key in the invention is high, and the complexity of key generation and the dependence on the channel are reduced.

Description

technical field [0001] The invention belongs to the field of wireless network communication, and in particular relates to a physical layer security transmission method based on antenna selection-based differential chaos keying. Background technique [0002] With the development of modern communication technology, people pay more and more attention to the security and confidentiality of information transmission. The chaotic sequence has the advantages of aperiodicity, unpredictability, similar characteristics to noise, and extreme sensitivity to the initial value, which makes the chaotic signal have natural concealment, low interception and good anti-interference, so the chaotic communication system is widely used in military affairs. Communication, low probability of intercept communication (Low Probability of Intercept, LPI) and other fields have unique advantages, and the differential chaos shift keying (Differential Chaos Shift Keying, DCSK) modulation scheme (see referen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L27/00H04B7/0413
Inventor 雷菁鲁信金王思鑫李为黄英
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com