Dynamic frequency spectrum distribution method of cognitive heterogeneous network

A technology for cognitive heterogeneous network and dynamic spectrum, applied in the field of dynamic spectrum allocation
CN104168569AActive Publication Date: 2014-11-26HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2014-11-26

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Abstract

The invention relates to a dynamic frequency spectrum distribution method of a cognitive heterogeneous network. A probability HMCR carrying out selection from a quantum harmony set is set and a quantum-harmony-based dynamic frequency spectrum method is initialized; a quantum tone of each quantum harmony is measured to obtain a harmony base x and a harmony memory base H, and fitness calculation is carried out on each harmony and the corresponding fitness values are respectively stored in a Fit and a Fit 1; if rand is less than HMCR, the quantum tone of the last-generation quantum harmony is inherited and a quantum rotating gate is started to generate a new solution; if the rand is larger than the HMCR, a tent pseudo chaos sequence is generated randomly to generate a new quantum harmony; the quantum tone of each quantum harmony is measured successively to obtain a corresponding harmony, and fitness calculation is carried out to replace the corresponding fitness value in the Fit 1; and a global optimum harmony in the harmony memory base H is outputted in a loop iteration mode and global optimum harmony mapping is carried out to obtain a frequency spectrum distribution matrix A that is the optimum frequency spectrum distribution scheme of the cognitive heterogeneous network.
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Description

technical field

[0001] The invention relates to a dynamic frequency spectrum allocation method for a cognitive heterogeneous network. Background technique

[0002] The existing wireless communication network is composed of multiple radio access networks (RAN, radio access network) based on different radio access technologies (RAT, radio access technology). Although these access networks provide similar services, they work independently , it cannot guarantee that user services will always obtain the best quality of service. For this reason, different access networks can increase coverage and improve service quality through convergence, and heterogeneous wireless networks have become a development trend; in addition, the current fixed allocation of spectrum resources considers the peak value of the RAN Business, ignoring the time and regional differences in business distribution, resulting in low spectrum usage efficiency, heterogeneous wireless networks can make full use of t...

Claims

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