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A Cooperative Spectrum Sensing Method Based on Nash Bargaining Model

A collaborative spectrum sensing and bargaining technology, applied in the field of collaborative spectrum sensing based on the Nash bargaining model, can solve problems such as unsatisfactory spectrum sensing, and achieve the effects of increasing enthusiasm, improving accuracy, and improving transmission accuracy.

Active Publication Date: 2021-02-26
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to provide a cooperative spectrum sensing method based on the Nash bargaining model, which applies the crowd sensing incentive mechanism to cooperative spectrum sensing, encourages more users to cooperate in spectrum sensing, and solves the problems of the prior art When the fusion platform (base station) channel is relatively poor, the problem of spectrum sensing is not ideal, which can improve the accuracy of information transmission and the performance of spectrum sensing

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  • A Cooperative Spectrum Sensing Method Based on Nash Bargaining Model
  • A Cooperative Spectrum Sensing Method Based on Nash Bargaining Model
  • A Cooperative Spectrum Sensing Method Based on Nash Bargaining Model

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[0042] The technical method of the present invention will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.

[0043] See figure 1 , which shows a flowchart of a cooperative spectrum sensing method based on the Nash bargaining model.

[0044] The basic idea of ​​the present invention is to apply multi-task group intelligence sensing to collaborative spectrum sensing to solve the problem of recruiting and motivating secondary users. First optimize the number of sampling points of secondary users participating in collaborative spectrum sensing to obtain the optimal utility; then apply the incentive mechanism of group intelligence sensing to collaborative spectrum sensing, establish a secondary user utility function, and optimize the number of sampling points in the utility function, Therefore, the utility of the secondary user is optimized, and the secondary user is encouraged to participate in spectrum sensing, thereb...

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Abstract

The invention discloses a cooperative spectrum sensing method based on the Nash bargaining model. The method first establishes a cooperative transmission model of perception information between secondary users according to the Nash bargaining model; then solves the optimal transaction mode of Nash bargaining; When the sensed spectrum information is directly sent to the base station, the above optimal transaction method is adopted to forward the sensed spectrum information through other secondary users. The invention can encourage more secondary users who cannot directly send information to the base station to participate in sensing, and effectively improves the accuracy of spectrum sensing.

Description

technical field [0001] The invention belongs to the field of spectrum sensing in mobile communication technology, in particular to a cooperative spectrum sensing method based on a Nash bargaining model. Background technique [0002] Using cognitive radio technology to improve the utilization rate of wireless spectrum can effectively alleviate the shortage of wireless spectrum resources. Spectrum sensing technology is an important part of cognitive radio technology, which mainly detects when and where a certain spectrum is used. If the spectrum is free, the spectrum can be temporarily allocated to other users. Spectrum sensing is divided into single-user spectrum sensing and cooperative spectrum sensing, where cooperative spectrum sensing is the joint sensing of multiple secondary users. In mobile communication, due to signal fading, the reliability of single-user sensing results is low, and most of them use cooperative spectrum sensing at present. [0003] More secondary ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/382H04W24/06
CPCH04W24/06H04B17/382
Inventor 朱琦吕鑫鑫朱洪波杨龙祥
Owner NANJING UNIV OF POSTS & TELECOMM
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