Secure spectrum sensing algorithm based on blockchain technology

A spectrum sensing and blockchain technology, applied in security devices, advanced technology, sustainable communication technology, etc., can solve the problem of not being able to take into account the energy efficiency and perception performance of cognitive radio networks, so as to extend the working life and take into account the perception Accuracy and Energy Efficiency

Pending Publication Date: 2022-02-15
HUNAN UNIV OF SCI & ENG
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a secure spectrum sensing algorithm based on blockchain technology to solve the problem that the existing methods proposed in the background technology cannot take into account the energy efficiency and sensing performance of cognitive radio networks

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  • Secure spectrum sensing algorithm based on blockchain technology
  • Secure spectrum sensing algorithm based on blockchain technology
  • Secure spectrum sensing algorithm based on blockchain technology

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Embodiment Construction

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.

[0035] The embodiment of the present invention provides a secure spectrum sensing algorithm based on block chain technology, the algorithm uses such as figure 1 The cognitive radio network model based on the block chain is realized. The cognitive radio network model includes a block chain management center, a master user, a fusion center and multiple nodes. This model is a centralized cooperative spectrum sensing model, some nodes are in spectrum sensing state while others are in silent state. Each node can only exchange information with the fusion center. The sensing information of each node is sent to the fusion center for processing, and the fusion center feeds back information to each node. There is no direct communication between nodes, so the centra...

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Abstract

The invention discloses a secure spectrum sensing algorithm based on a blockchain technology, and the algorithm comprises the following steps: a node requests to access a certain frequency band, and senses whether the frequency band is idle; a blockchain management center records and stores spectrum sensing historical data of the nodes; a fusion center obtains historical data of the nodes participating in cooperative sensing from the blockchain management center; the fusion center sends a recommendation request to the blockchain management center; the blockchain management center recommends nodes with high comprehensive trust values to the fusion center; the fusion center makes a node selection decision according to the recommendation of the blockchain management center; and the fusion center selects nodes which participate in spectrum sensing for many times and have high trust values to participate in cooperative spectrum sensing. According to the secure spectrum sensing algorithm based on the blockchain, the change of the environment can be reflected, the reliability of the sensing node is evaluated in real time, and the trust value of the node is obtained through the evaluation algorithm; the algorithm of the invention can give consideration to both energy efficiency and sensing precision, and prolongs the service life of the cognitive radio network.

Description

technical field [0001] The present invention relates to the technical field of spectrum sensing, in particular to a secure spectrum sensing algorithm based on block chain technology. Background technique [0002] The development of wireless communication technology requires more spectrum resources, but the current spectrum allocation policy leads to low spectrum utilization and increasingly tight spectrum resources. Cognitive radio technology allows dynamic spectrum access to licensed frequency bands to improve spectrum utilization and alleviate the shortage of spectrum resources. In the process of spectrum sensing, multi-node cooperative sensing can effectively improve the accuracy of spectrum sensing, but the increase in the number of nodes will bring additional energy consumption, and the increase in energy consumption will reduce the working life of the cognitive network. [0003] Currently, many methods are used to prolong the working life of cognitive radio networks. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382H04W12/03H04W12/122H04W28/08
CPCH04B17/382H04W28/0925H04W28/0917H04W12/03H04W12/122Y02D30/70
Inventor 黄堂森李小武肖孚安周玲
Owner HUNAN UNIV OF SCI & ENG
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