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Wireless spectrum distributing method based on chaos search quantum genetic algorithm

A quantum genetic algorithm and wireless spectrum technology, applied in the field of wireless spectrum allocation based on chaotic search quantum genetic algorithm, can solve the problems of spectrum resource shortage, low, difficult to meet wireless communication needs, etc., and achieve the effect of improving the convergence speed

Inactive Publication Date: 2015-07-08
YANSHAN UNIV
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Problems solved by technology

[0002] In the process of wireless communication technology development, the bottleneck restricting the development of the wireless communication field is the shortage of spectrum resources, and one of the main reasons for the shortage of spectrum resources is the low utilization rate of spectrum resources
The relevant research projects of the US Federal Communications Commission (FCC) show that the currently widely used fixed spectrum allocation strategy has been difficult to meet the rapidly growing wireless communication needs of today's society

Method used

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  • Wireless spectrum distributing method based on chaos search quantum genetic algorithm
  • Wireless spectrum distributing method based on chaos search quantum genetic algorithm
  • Wireless spectrum distributing method based on chaos search quantum genetic algorithm

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing:

[0030] Such as figure 1 As shown, the distribution algorithm of the present invention comprises the following steps:

[0031] (1) if figure 2 and image 3 As shown, the cognitive network structure includes multiple primary users 1 and several secondary users 2, each primary user has an independent channel, and the interference coverage of primary users is as follows figure 2 As shown by the solid line in , the interference coverage of secondary users is as follows figure 2 As shown by the dotted line in the center, through the cognitive wireless network structure, the following matrix is ​​determined,

[0032] Available spectrum matrix L={l n,m | l n,m ∈{0,1}} N×M

[0033] Benefit matrix B={b n,m} N×M

[0034] Interference matrix C = {c n,k,m |c n,k,m ∈{0,1}} N×N×M

[0035] Wherein, N represents the number of users, and M represents the number of channels;...

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Abstract

The invention relates to a spectrum resource dynamic management mechanism in the field of wireless communication networks, in particular to a wireless spectrum distributing method based on a chaos search quantum genetic algorithm. With the target of achieving efficient network spectrum resource distribution, in combination with the characteristic of the quantum genetic algorithm, the method supporting dynamic adjustment of wireless spectrum resource distribution is designed and realized, chaos search is adopted to initialize chromosome codes of a population, a variation threshold value is set in the iteration process, whether chromosomes vary or not is determined according to the threshold value, and the chromosomes are mapped into a frequency spectrum distribution matrix to achieve optimal frequency spectrum distribution. The wireless spectrum distributing method has the advantages of being small in network control load, high in spectrum resource distribution efficiency and real-time performance and suitable for the spectrum dynamic distribution process in a wireless cognitive network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a wireless frequency spectrum allocation method based on a chaos search quantum genetic algorithm. Background technique [0002] In the process of wireless communication technology development, the bottleneck restricting the development of the wireless communication field is the shortage of spectrum resources, and one of the main reasons for the shortage of spectrum resources is the low utilization rate of spectrum resources. The relevant research projects of the US Federal Communications Commission (FCC) show that the currently widely used fixed spectrum allocation strategy has been difficult to meet the rapidly growing wireless communication needs of today's society. In order to improve the utilization efficiency of spectrum resources and solve the problem of unbalanced spectrum utilization, Joseph Mitola further proposed the concept of cognitive radio on the basis of sof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10
CPCH04W16/10
Inventor 刘刚赵海洋陈华胡春海刘斌
Owner YANSHAN UNIV
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