A Spectrum Allocation Method Based on Improved Stable Marriage Algorithm

A spectrum allocation and stable marriage technology, applied in the field of spectrum allocation, to maximize spectrum utilization, stabilize and optimal matching, and solve the waste of spectrum resources and excessive switching.

Active Publication Date: 2019-01-01
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0008] Aiming at the unreasonable allocation of spectrum holes at present, the present invention proposes a dynamic spectrum allocation method based on an improved stable marriage algorithm. By using multiple prior information to calculate the priority preference degree, the time-frequency of cognitive system access is realized. Domain matching to improve spectral efficiency

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  • A Spectrum Allocation Method Based on Improved Stable Marriage Algorithm
  • A Spectrum Allocation Method Based on Improved Stable Marriage Algorithm
  • A Spectrum Allocation Method Based on Improved Stable Marriage Algorithm

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Embodiment Construction

[0036] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0037] The process of matching spectrum holes and cognitive users based on the existing stable marriage algorithm is as follows: figure 1 shown. Boys are generally replaced with cognitive users and girls with spectral holes. Before the matching, the spectral hole and the cognitive user complete the preference for each other with their respective indicators, so that the matching operation can be performed.

[0038] In the embodiment of the present invention, it is assumed that the set of cognitive users is {SU 1 , SU 2 …SU M}, there are M cognitive users in total, and the set of spectral holes is {SH 1 ,SH 2 ...SH N}, there are N spectral holes in total. Both M and N are positive integers.

[0039] The process of matching spectral holes and cognitive users based on the existing stable marriage algorithm is as follows:

[0040] Step 100, initi...

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Abstract

The invention provides a spectrum allocation method based on an improved stable marriage algorithm belonging to the technical field of spectrum allocation in the cognitive radio. According to the method, a preference priority model of cognitive users to spectrum holes and a preference priority model of spectrum holes to cognitive users are built according to prior information; the prior information and a spectrum pool are obtained from an authorized system; a preference priority value is calculated; and the dynamic spectrum allocation is realized through the stable marriage algorithm. According to the method of the invention, stable optimum matching of the cognitive users and the spectrum holes is effectively realized; the spectrum efficiency is maximized; and the problem of spectrum resource waste and too much switching resulted from improper matching is solved.

Description

technical field [0001] The invention relates to a spectrum allocation technology in cognitive radio, which can dynamically complete spectrum allocation based on an improved stable marriage algorithm, realize optimal matching between cognitive users and spectrum holes in the time-frequency domain, and maximize spectrum utilization. Background technique [0002] The limited spectrum available and the low utilization of spectrum resources have given rise to a new way of communication. Using the existing spectrum, the researchers proposed the idea of ​​open spectrum management. The increasingly scarce spectrum resources have become an important factor restricting the rapid development of wireless communication services, and wireless spectrum resource sharing and allocation technology has become the core technology of the new generation of wireless mobile communications. Spectrum allocation technology is an important technology in cognitive radio networks. By allocating spectrum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/10H04B17/382
CPCH04B17/382H04W16/10
Inventor 王朝炜邓国徽刘帅军王卫东张英海崔高峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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