Cognitive radio frequency spectrum sharing method and system

A cognitive radio and spectrum sharing technology, applied in wireless communication, electrical components, network planning, etc., can solve problems such as poor service quality, achieve the effect of reducing complexity, reducing interference risk, and solving poor service quality

Active Publication Date: 2011-02-02
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0011] The purpose of the embodiments of the present invention is to provide a spectrum sharing method for cognitive radio, which aims to solve the problem of poor service quality of cognitive users in the existing spectrum sharing method

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  • Cognitive radio frequency spectrum sharing method and system
  • Cognitive radio frequency spectrum sharing method and system
  • Cognitive radio frequency spectrum sharing method and system

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Embodiment Construction

[0036] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0037] figure 1 The implementation process of the spectrum sharing method provided by the first embodiment of the present invention is shown, and the details are as follows:

[0038] In step S101, separate queues are established for authorized users and cognitive users respectively.

[0039] In step S102, the held spectrum is divided into N independent frequency points of the same structure. Among them, the value of N can be preset and modified as needed.

[0040] In step S103, all independent frequency points are allocated to authorized users or cognitive users, and each channel is allocated to...

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Abstract

The invention is applicable to the field of cognitive radio and provides a cognitive radio frequency spectrum sharing method and a cognitive radio frequency spectrum sharing system. The method comprises the following steps of: building an individual sequence for an authorized user and a cognitive user respectively; dividing a held frequency spectrum into N isostructural individual frequency points; distributing all individual frequency points to the authorized user or the cognitive user for use, wherein each channel is only distributed to one authorized user or cognitive user for exclusive use at any time; and recovering the channel to perform channel distribution for the next time after the authorized user or the cognitive user completes the service, wherein the value of N can be preset and corrected according to requirements. In the embodiment of the invention, a central control scheme is adopted, and the dependence of other schemes on aspects such as a network topology structure and the node density of the cognitive user is avoided. Meanwhile, the problem of the low service quality of the cognitive user in the conventional frequency spectrum sharing method is solved.

Description

Technical field [0001] The invention belongs to the field of cognitive radio, and in particular relates to a method and system for spectrum sharing of cognitive radio. Background technique [0002] With the rapid development of wireless communication services, radio frequency spectrum has become an important and scarce resource. On the one hand, various wireless services place more demands on spectrum resources in terms of quantity and quality; on the other hand, due to the existing static spectrum allocation scheme, the spectrum resources are not effectively used. Cognitive wireless and network technologies are effective ways to improve the efficiency of spectrum resource use. In recent years, many scholars and organizations have conducted in-depth research on spectrum (channel) scheduling in cognitive radio. The main research results are as follows: [0003] Spectrum sharing based on lease: The idea of ​​spectrum usage proposed by the founder of cognitive radio, J. Mitola, is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14
Inventor 张钦宇王野吴绍华肇启明王胜
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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