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A Spectrum Resource Allocation Method Based on Spectrum Clustering in Heterogeneous Cellular Networks

A spectrum resource allocation and cellular network technology, applied in network planning, wireless communication, electrical components, etc., can solve the problems of poor practicability and high algorithm complexity, and achieve the effect of improving utilization rate, low complexity, and reducing interference

Active Publication Date: 2021-09-17
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing spectrum resource allocation algorithms for heterogeneous cellular networks mainly include intelligent algorithms or game theory, but these algorithms have high algorithm complexity and poor practicability

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  • A Spectrum Resource Allocation Method Based on Spectrum Clustering in Heterogeneous Cellular Networks
  • A Spectrum Resource Allocation Method Based on Spectrum Clustering in Heterogeneous Cellular Networks
  • A Spectrum Resource Allocation Method Based on Spectrum Clustering in Heterogeneous Cellular Networks

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Embodiment Construction

[0054] 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 of the embodiments of the present invention, not all of them. 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.

[0055] See attached figure 1 , the embodiment of the present invention discloses a spectrum resource allocation method based on spectrum clustering in a heterogeneous cellular network, including:

[0056] S1: Taking the users in the heterogeneous cellular network environment as vertices, constructing a non-directional weight connection graph;

[0057] S2: Construct a similarity matrix for the edge weights of the non-directional weight connection...

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Abstract

The invention discloses a spectral resource allocation method based on spectrum clustering in a heterogeneous cellular network, including: S1: taking users in the heterogeneous cellular network environment as vertices, constructing a connection graph without direction weights; The direction weight connects the edge weights of the graph to construct a similarity matrix; S3: Obtain the normalized Laplacian matrix based on the similarity matrix, calculate the eigenvalues ​​and eigenvectors of the normalized Laplacian matrix, and obtain the first matrix, Normalize each row of the first matrix to a norm of 1 to obtain the second matrix; S4: use the clustering algorithm to cluster the second matrix to realize the clustering of heterogeneous cellular network users; S5: obtain the result of step S4 Different clusters are assigned different spectrum resources. The overall method of the present invention has low complexity, and the method can improve the utilization rate of frequency resources, reduce the interference in the system to the greatest extent, and can effectively guarantee the service quality of users.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically relates to a method for allocating frequency spectrum resources based on spectrum clustering in a heterogeneous cellular network. Background technique [0002] In the future, the increasing demand for wireless communication will bring great pressure to the existing wireless communication network, and the traditional single-layer cellular network will be increasingly unable to meet the communication needs of end users. Therefore, heterogeneous cellular networks have attracted more and more attention. Heterogeneous cellular network refers to a hybrid network composed of macro base stations and low-power nodes, which has the advantages of flexible networking, targeted coverage, low maintenance costs, high frequency utilization, and green energy saving. However, due to the spectrum reuse of heterogeneous cellular networks, a large number of deployed small base sta...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/10H04W72/04
CPCH04W16/10H04W72/53H04W72/51
Inventor 钱志鸿杨冰涛王雪黄岚初明蒙武杰
Owner JILIN UNIV