Supercharge Your Innovation With Domain-Expert AI Agents!

Spectrum sensing-based anti-eavesdropping method combining relay and interference

A spectrum sensing and broadcast interference technology, applied in the direction of communication interference, advanced technology, electrical components, etc., can solve problems such as legal node interference, interference with eavesdropping nodes, etc.

Active Publication Date: 2017-11-24
XIDIAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-eavesdropping method based on joint relay and interference based on spectrum sensing, which can solve the problem that interference nodes will interfere with legitimate nodes while cooperating to interfere with eavesdropping nodes

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
  • Spectrum sensing-based anti-eavesdropping method combining relay and interference
  • Spectrum sensing-based anti-eavesdropping method combining relay and interference
  • Spectrum sensing-based anti-eavesdropping method combining relay and interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0042] like figure 1 As shown, the system model; specifically:

[0043] There is a source node S, a destination node D, and K legal cooperative nodes R in the system k (k∈{1,2,3,...,K}), an eavesdropping node E; all nodes have only one antenna, and the coordinating node can act as a relay to assist the source node to forward signals, or as an interference node to interfere with the eavesdropper ;All cooperative nodes work in half-duplex mode, using decode-and-forward (DF) mode;

[0044] R k The channel gain between and E is expressed as E. m and the channel gain between A and B is expressed as R k and the channel gain...

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 discloses a spectrum sensing-based anti-eavesdropping method combining relay and interference. The method comprises a first step of before transmission, sending channel state information of each frequency point, then selecting an optimal relay according to the following selection method, and switching work frequencies of a source node S and a destination node D to f; a second step of in a first timeslot, sending, by the source node S by using the frequency point f, a signal to R; a third step of in a second timeslot, forwarding, by R by using the frequency point f, a signal to the destination node D, meanwhile, broadcasting an interference signal by remaining coordinating nodes by using their own frequency points. The method has the advantages of solving a problem that an interference node interferes with legal nodes while coordinating to interfere with eavesdropping nodes.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an anti-eavesdropping method based on joint relay and interference based on spectrum sensing. Background technique [0002] Due to the broadcast nature of wireless transmission, wireless transmission faces the danger of being eavesdropped by unauthorized eavesdropping nodes. As a supplement to the upper layer encryption algorithm, many researchers have conducted in-depth research on the physical layer secure communication in recent years. The research on physical layer security has just started in China. For example, Yu Guanding of Zhejiang University has studied the confidential communication capacity that can be achieved when broadband communication systems are transmitted in multi-carrier mode from the perspective of information theory; Peking University Aiming at wireless relay systems with eavesdropping problems, Song Lingyang et al. proposed a method to enhance the ca...

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
IPC IPC(8): H04W24/02H04W40/22H04K3/00
CPCH04K3/28H04K2203/34H04W24/02H04W40/22Y02D30/70
Inventor 张沉思田佩杰葛建华岳安军
Owner XIDIAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com