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Spectrum leasing method for cognitive radio network

A technology of cognitive radio and spectrum leasing, which is applied in the field of spectrum leasing of cognitive radio networks, can solve problems such as not optimal system performance, and achieve the effect of avoiding interference

Active Publication Date: 2019-03-01
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing secondary user case research work lacks comprehensive consideration of user preference, investment and pricing, resulting in suboptimal overall system performance, so it is imminent to design a new spectrum leasing method

Method used

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  • Spectrum leasing method for cognitive radio network
  • Spectrum leasing method for cognitive radio network
  • Spectrum leasing method for cognitive radio network

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The invention discloses a spectrum leasing method of a cognitive radio network, comprising the following steps:

[0034] When primary users and secondary users lease spectrum, primary users need to determine the lease price charged according to the secondary users who occupy their own spectrum, and for secondary users who lease the spectrum of primary users, secondary users need The lease price is used to determine the best spectrum allocation factor to optimize its own performance. Therefore, the Stackelberg game is well suited to handle this process. In the Stackelberg game, the primary user acts as the leader to determine the best spectrum lease price to be charged based on the channel state information received about the secondary users. The secondary user acts as a follower, and the secondary user determines the amount of spectr...

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Abstract

The invention discloses a spectrum leasing method for a cognitive radio network. The method comprises the steps of modeling a spectrum leasing problem between primary users and secondary users throughutilization of a Stackelberg game; carrying out computing to obtain the optimum spectrum allocation factors under a condition that spectrum leasing prices of the primary users are not changed, and carrying out computing according to the optimum spectrum allocation factors, thereby obtaining the optimum spectrum leasing prices; obtaining a revenue function of each primary user according to the optimum spectrum allocation factors and the optimum spectrum leasing prices, and establishing preference lists of the primary users according to the revenue functions of the primary users; and pairing the master users and the secondary users according to the preference lists of the primary users, thereby obtaining the optimum spectrum leasing matching results. Interaction and user preference in investment and pricing decision aspects of the primary users and the secondary users are taken into consideration, so spectrum efficiency of a spectrum leasing system is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a spectrum leasing method of a cognitive radio network. 【Background technique】 [0002] With the rapid development of wireless services, the shortage of spectrum resources has become a very serious problem. Existing studies have shown that traditional spectrum allocation methods are inefficient, causing many existing spectrum resources to be idle for a long time. With the development of cognitive radio technology, spectrum leasing, as a promising technology, allows unlicensed wireless users (secondary users) to lease part of the spectrum of traditional licensed spectrum users (primary users) and pay corresponding payments to the primary users. The price of the fee. At the same time, the primary user also uses the secondary user as a relay to transmit information. [0003] However, most of the existing secondary user case research work lacks compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W28/26
CPCH04W16/14H04W28/26
Inventor 李立欣刘笑敏李旭高昂梁微张会生
Owner NORTHWESTERN POLYTECHNICAL UNIV
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