Incremental cooperative sensing method on basis of n-out-of-K fusion rule

A cooperative perception and incremental technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problem of insufficient perception ability of a single node

Inactive Publication Date: 2013-02-20
NANTONG UNIVERSITY
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Energy detection is a typical representative of local perception. It is simple to implement and does not require prior knowledge of the main us

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
  • Incremental cooperative sensing method on basis of n-out-of-K fusion rule
  • Incremental cooperative sensing method on basis of n-out-of-K fusion rule
  • Incremental cooperative sensing method on basis of n-out-of-K fusion rule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0033] figure 1 Shown is a cognitive radio spectrum cooperative sensing system based on decision fusion. The system has K relays. In order to solve the problem of large time slot overhead in traditional cooperative sensing algorithms, the cooperative relays are divided into the first N and the last K-N. If the first part detects that there are too many or too few relays of the main user, the sensing ends, otherwise, the incremental cooperative sensing is performed in the second part, and incremental cooperative sensing and non-incremental cooperative sensing are used depending on the specific situation. Perception, the specific steps are as follows and see figure 2 :

[0034] (1) The first N time slots:

[0035] (1.1) The first N relays sense locally and send the sensing results to the fusion center, and it is assumed that x relays detect the primary u...

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 relates to an incremental cooperative sensing method on the basis of an n-out-of-K fusion rule. The method includes dividing K relays of a cooperative sensing system into N front relays and K-N rear relays, detecting x relays with available master users of N front time slots, adopting an incremental cooperative sensing mode if m<L> is smaller than x and the x is smaller than m<H>, and adopting a non-incremental cooperative sensing mode if the m<L> is not smaller than the x and the x is not smaller than the m<H>; determining that the master users are unavailable if the x is smaller than or equal to the m<L> when the non-incremental cooperative sensing mode is adopted, and determining that the master users are available if the x is larger than or equal to the m<H>; and detecting y relays with available master users of K-N rear time slots when the incremental cooperative sensing mode is adopted, determining that the master users are available if x+y is larger than or equal to n, and determining that the master users are unavailable if the x+y is smaller than the n. The incremental cooperative sensing method has the advantages that the non-incremental cooperative sensing mode is adopted during cooperative sensing to reduce the average expenditure on the time slots, and the sensory ability equivalent to the sensory ability of the traditional algorithm is guaranteed by optimization constraint conditions.

Description

technical field [0001] The invention relates to the field of cognitive radio cooperative spectrum sensing, in particular to an incremental cooperative sensing method based on n-out-of-K fusion rules. Background technique [0002] At present, the management system of licensed (primary) users occupying spectrum fixedly makes the use of precious spectrum resources very inefficient, and the demand for spectrum resources is becoming more and more urgent with the development of wireless communication. Since spectrum resources are limited, improving the utilization efficiency of existing spectrum resources is an effective way to solve the shortage of spectrum resources. Cognitive radio is one such technology. In order to utilize idle spectrum resources, unlicensed (secondary) users must accurately perceive spectrum holes and access them. Therefore, spectrum sensing is one of the key technologies in cognitive radio. [0003] Spectrum sensing can be divided into local sensing and c...

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): H04B17/00H04B17/373H04B17/382
Inventor 张晓格张士兵包志华邱恭安
Owner NANTONG UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap