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

A Double-Threshold Cooperative Perception Method Based on Secondary User History Judgment

A collaborative sensing and sub-user technology, applied in the field of spectrum sensing, can solve the problems of insufficient data utilization of spectrum sensing technology, and the detection accuracy needs to be improved, so as to reduce the average uncertain decision probability, improve real-time and reliability, and achieve spectrum sensing Accurate results

Active Publication Date: 2022-05-27
NANJING UNIV OF POSTS & TELECOMM
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the data utilization rate of the spectrum sensing technology in the prior art is insufficient and the detection accuracy needs to be improved, the present invention proposes a dual-threshold cooperative sensing method based on the secondary user historical judgment, through the improved dual-threshold energy detection technology and based on The weighted cooperative sensing technology of historical judgment data improves the overall detection performance of spectrum sensing

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 Double-Threshold Cooperative Perception Method Based on Secondary User History Judgment
  • A Double-Threshold Cooperative Perception Method Based on Secondary User History Judgment
  • A Double-Threshold Cooperative Perception Method Based on Secondary User History Judgment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0060] The present invention provides a double-threshold cooperative sensing method based on the historical judgment of secondary users, such as figure 1 specified, including the following steps:

[0061] Step 1. Utilize multiple secondary users to perform local energy detection according to preset dual thresholds to obtain historical judgment data;

[0062] Step 2, using historical judgment data to calculate the judgment credibility of each secondary user, and obtain the weight value of each secondary user according to the judgment credibility;

[0063] Step 3, performing weighted cooperative sensing according to the local judgment result of the secondary user and the weight value...

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 dual-threshold cooperative sensing method based on secondary user historical judgment, aiming to solve the technical problem of insufficient spectrum sensing detection accuracy in the prior art. It includes: using multiple secondary users to perform local energy detection according to preset dual thresholds, and obtaining historical judgment data; using historical judgment data to calculate the judgment credibility of each secondary user, and obtaining the weight of each secondary user according to the judgment credibility value; perform weighted cooperative sensing according to the local decision result of the secondary user and the weight value of the secondary user to obtain the spectrum sensing result; update the weight value of each secondary user according to the spectrum sensing result. The present invention can effectively improve the overall detection performance and improve the detection accuracy of spectrum sensing.

Description

technical field [0001] The invention relates to a dual-threshold cooperative sensing method based on secondary user history judgment, and belongs to the technical field of spectrum sensing in cognitive radio technology. Background technique [0002] With the development of the times and science and technology, cognitive radio technology, as an important means to solve the lack of radio spectrum resources, has been widely used in many fields, and spectrum sensing technology, as the core technology, has also been studied by experts and scholars. [0003] Spectrum sensing refers to the use of devices with cognitive capabilities to find out the idle licensed spectrum in the cognitive environment through detection technology, and opportunistically access the frequency band for communication work without interfering with the normal use of the licensed spectrum by authorized users. Technology. Due to the existence of shadow effects, multipath fading and hidden terminals, the state...

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): H04B17/382H04B17/336
CPCH04B17/382H04B17/336
Inventor 齐丽娜方浩军
Owner NANJING UNIV OF POSTS & TELECOMM
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