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

Weighted graph modeling method for channel reuse in wireless cellular network

A wireless cellular and channel reuse technology, applied in the field of communication, can solve the problems such as the conflict graph model cannot accurately reflect the cell interference, the hypergraph model has high computational complexity, and reduces the modeling computational complexity.

Active Publication Date: 2017-10-03
ZHONGYUAN ENGINEERING COLLEGE
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problem that the conflict graph model in channel reuse cannot accurately reflect the interference between cells, and the hypergraph model has high computational complexity, the present invention proposes a weighted graph modeling method for channel reuse in wireless cellular networks, which can accurately reflect cell The interference between them can reduce the computational complexity of modeling and complete the modeling in polynomial time

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
  • Weighted graph modeling method for channel reuse in wireless cellular network
  • Weighted graph modeling method for channel reuse in wireless cellular network
  • Weighted graph modeling method for channel reuse in wireless cellular network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] A weighted graph modeling method for channel reuse in a wireless cellular network, the steps of which are as follows:

[0024] Step 1: Assume that there are N cells in the wireless cellular network, and the set of all cells is V={n 1 ,n 2 ,...,n N}, cell n i The radius of the circumscribed circle of the coverage area of ​​(i=1,...,N) is r i .

[0025] Such as figure 1 As shown, there are 7 cells in the wireless cellular network, and their labels a...

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 provides a weighted graph modeling method for channel reuse in a wireless cellular network. The method comprises the following steps: abstracting cells in the wireless cellular network as nodes in a weighted graph, and then establishing a weighting margin between each two cell nodes, wherein the weight is equal to an interference value between the two cells. According to the weighted graph modeling method, the cells in the wireless cellular network are abstracted as the nodes in the directional weighted graph, and then a directional margin is established between each two cell nodes, and the weight of the directional margin is equal to the relative interference strength between the two cells; and by adoption of the modeling method, the problems that the interference between the cells cannot be accurately reflected by a conflict graph model and that a hypergraph model can accurately reflect the interference, but the computing cost is high, is overcome, the interference between the cells can be accurately reflected, and the modeling can be accomplished within a polynomial time.

Description

technical field [0001] The invention relates to the technical field of communication technology, in particular to a weighted graph modeling method for channel reuse in a wireless cellular network, and is especially suitable for mobile communication networks and wireless communication networks. Background technique [0002] In a wireless cellular network, spectrum resources are usually divided into multiple mutually independent channels, and these channels are allocated to different cells for use by call requests in the cells. Each call request needs to use a channel. Since the total spectrum resources are limited, in order to accommodate more call requests at the same time, the channel resources need to be reused between cells. When multiple cells use the same channel for communication, co-channel interference will occur; when channel reuse is performed, it is necessary to reasonably select the cells that share the same channel, and it is necessary to model and analyze the i...

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): H04W24/06
CPCH04W24/06
Inventor 李旭红杨丽华于志云
Owner ZHONGYUAN ENGINEERING COLLEGE
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