Realization method for mixed network structure in cognitive radio

A technology of cognitive radio and network structure, which is applied in the field of physical transmission medium and can solve the problems of changing coverage of CR cells, small number of frequency bands, and irregularities.
CN1882158AInactive Publication Date: 2006-12-20UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2006-12-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for realizing mixed network structure, belonging to the wireless communication technique, especially the frequency spectrum application of cognitive radio system and the realization of physical transmission medium of cognitive radio mixed network structure, wherein it comprises: based on the interfere temperature model, calculating the allowed maximum receiving power of receiver at said time, calculating the real emission power of sending terminal, calculating the combination of two effective frequency spectrums, and realizing the point-to-multipoint (PMP) and mesh topology in mixed structure. The inventive classified spectrum share method can realize the mixed structure that supporting the point-to-multipoint (PMP) and mesh topology, to increase the system capacity and expand the area cover range.
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Description

technical field

[0001] A method for realizing a hybrid network structure in cognitive radio belongs to the field of wireless communication technology, and in particular relates to a spectrum usage mode of a cognitive radio (Cognitive Radio) system, and the realization of a physical transmission medium of a cognitive radio hybrid network structure. Background technique

[0002] Cognitive radio system is an intelligent wireless communication system, which can perceive and learn the surrounding environment, and adjust its own communication parameters (such as modulation mode, communication frequency band, etc.) to adapt to changes in the surrounding environment. At present, cognitive radio is mainly used to solve the shortage of spectrum resources in wireless communication. Using the intelligent perception capability of cognitive radio, unlicensed users can use the spectrum resources originally allocated to licensed users without causing interference to licensed users when lice...

Claims

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