Distance tree protocol frame of medium access control (MAC) layer based on opportunistic spectrum access (OSA) technology

A spectrum access and distance technology, applied in electrical components, wireless communication, network topology, etc., can solve problems such as collisions and primary user interference, and achieve the effects of avoiding communication conflicts, saving energy costs, and ensuring collision-free transmission

Active Publication Date: 2010-02-10
NANJING UNIV OF POSTS & TELECOMM
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in the self-organizing network environment, in addition to the problem that the secondary users may cause interference to the primary user, the non-cooperative manner between the secondary users will also cause collisions due to the simultaneous sharing of the same primary user channel.

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
  • Distance tree protocol frame of medium access control (MAC) layer based on opportunistic spectrum access (OSA) technology
  • Distance tree protocol frame of medium access control (MAC) layer based on opportunistic spectrum access (OSA) technology
  • Distance tree protocol frame of medium access control (MAC) layer based on opportunistic spectrum access (OSA) technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] figure 1 It shows a case of an ad hoc network environment where multiple master users and multiple users exist at the same time. refer to figure 1 , the broadcast TV spectrum is divided into N channels, and each primary user x j , j=1, 2, 3, 4 occupies a channel n j , j=1,2,3,4. Any secondary user y i , i=1, 2 is a wireless access point or a transmission link in the ad hoc network. Several primary users and secondary users exist around a secondary user at the same time. For master user x j , there is a primary user x determined by its maximum allowable interference power j d p (x j , n j ) is the protected area of ​​radius. For master user y i , there exists a primary user y determined by its maximum allowable interference power i d s (y i , n j ) is the protected area of ​​radius. if user y i Entering this area will cause interference to the primary user. On the other hand, if the secondary user y i′ In subuser y i within the protected area and the ...

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 distance tree protocol frame of MAC layer based on an OSA technology, and relates to a protocol frame of MAC layer based on an OSA technology in a wireless communication network. The protocol frame mainly comprises the following two parts: 1. building a distance tree model used for identifying the availability of a primary user channel, and establishing a channel availability list in a base station of a primary and secondary user; 2. building a utility function from the view of fairness and designing the spectrum access strategy. The basic idea of the frame is to build the channel availability list between the primary user and the secondary user respectively according to distance and maximum allowable interference power, which is taken as the reference of channelperceiving and access, and as the reference for realizing resource sharing of fair spectrum between the secondary users. The basic application environment of the protocol frame is a self-organizing network environment in which the multi-primary users and multi-secondary users exist at the same time.

Description

technical field [0001] The present invention generally relates to a protocol framework of a MAC layer based on Opportunistic Spectrum Access (OSA) in a wireless communication network. The basic idea of ​​this framework is to establish a channel availability list based on distance and maximum permissible interference power in the primary user and secondary user respectively, as a reference for channel perception and access, and as a basis for realizing fair spectrum among secondary users. Basis for resource sharing. The basic application environment of the protocol framework is an ad hoc network environment where multiple master users and multiple users exist simultaneously. Background technique [0002] Opportunistic Spectrum Access (OSA) means that there is no need for cooperation between the primary and secondary users, and the secondary users use the spectrum resources of the primary user as they see fit. The primary user does not need to know the existence of the secon...

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 Applications(China)
IPC IPC(8): H04W16/14H04W74/02H04W84/18
Inventor 孙君朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM
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