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A Multi-objective Spectrum Allocation Method Based on Quantum Flower Pollination Search Mechanism in Cognitive Heterogeneous Networks

A cognitive heterogeneous network and spectrum allocation technology, applied in network planning, wireless communication, electrical components, etc.

Active Publication Date: 2020-02-11
HARBIN ENG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the existing spectrum allocation methods in cognitive heterogeneous networks, and propose a quantum flower pollination-based search in cognitive heterogeneous networks that effectively solves the problem of discrete multi-objective spectrum allocation in cognitive heterogeneous networks Mechanism-based multi-objective spectrum allocation method

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  • A Multi-objective Spectrum Allocation Method Based on Quantum Flower Pollination Search Mechanism in Cognitive Heterogeneous Networks
  • A Multi-objective Spectrum Allocation Method Based on Quantum Flower Pollination Search Mechanism in Cognitive Heterogeneous Networks
  • A Multi-objective Spectrum Allocation Method Based on Quantum Flower Pollination Search Mechanism in Cognitive Heterogeneous Networks

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] This method is realized through the quantum flower pollination search mechanism, combined with non-dominated solution sorting and congestion calculation, so as to obtain a uniformly distributed Pareto front-end solution set, and then the system selects the appropriate one from the Pareto optimal solution set according to the weight of different goals. The spectrum allocation scheme completes the spectrum allocation.

[0051] The present invention is achieved through the following technical solutions, mainly comprising the following steps:

[0052] Step 1: Consider K different radio access networks to participate in spectrum allocation, respectively by RNRM k (k=1,2,...,K) management. The number of cell base stations that propose spectrum requirements in the k-th access network is N k ,but Indicates the total number of base stations making spectrum requests....

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Abstract

The invention relates to a multi-target frequency spectrum allocation method based on a quantum flower pollination search mechanism in a cognitive heterogeneous network, and the method is realized based on a multi-target quantum flower pollination search mechanism. The method comprises the steps that the wireless access network perception module in a base station perceives network information; (2) a network reconstruction management module performs multi-granularity channel division on the frequency spectrum resource; (3) a quantum pollen set including P quantum pollens is initialized; (4) each individual pollen in the pollen set is mapped as a frequency spectrum allocation matrix to be corrected; (5) the transformation probability of cross-pollination and self-pollination in the quantum flower pollination search mechanism is set; (6) the new generation of pollen set and the previous generation of pollen set are mixed; (7) the appropriate pollens are selected from Pareto front-end solutions and mapped as the frequency spectrum allocation matrix; and (8) the network reconstruction management module partitions the optimal allocation matrix. The problem of multi-target frequency spectrum allocation can be solved so as to enhance the utilization rate of the frequency spectrum.

Description

technical field [0001] The invention relates to a multi-objective frequency spectrum allocation method based on a quantum flower pollination search mechanism in a cognitive heterogeneous network realized by the multi-objective quantum flower pollination search mechanism. Background technique [0002] In order to adapt to different communication environments and increasing user business needs, mobile wireless communication has experienced the development from the first generation to the fourth generation. However, there is no obvious time limit for the update of each generation. It will take a long time to fully replace the old generation after it is put into use, and the coexistence of users of old and new networks using different technical standards is inevitable. It can be seen that a heterogeneous wireless network in which multiple access networks coexist has become a development trend of wireless networks in the future. Wireless communication inevitably occupies spectru...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04W16/14
Inventor 高洪元梁炎松杜亚男刁鸣李佳张世铂苏雪
Owner HARBIN ENG UNIV
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