Spectrum Sharing Method Based on Auction Theory and Compensation Incentives

Abstract

The invention aims at providing a spectrum sharing method based on auction theory and compensation stimulation in a cognitive radio system. The method aims at primary and secondary user spectrum sharing problems, the cooperative relationship between secondary users is introduced on the basis of a simplified video channel generator (VCG) auction model, in addition, a currency compensation stimulation principle is utilized for building an expansive non-cooperative game model including negotiation and consulting links. The cooperative relationship between the secondary users is discussed in a non-cooperative game framework by the game model, the game is carried out through the specific cooperative strategy, the decision mode characteristic of automatic implementation of the non-cooperative game model is realized, and the fairness characteristic of an oligarch combination model is also realized. In addition, because the adopted communication system model is the auction model, the primary users can adopts preserved bandwidth measures for ensuring that the self performance is protected from being influenced by secondary user spectrum sharing, and the spectrum shearing environment between the primary users and the secondary users is better ensured.

Description

technical field [0001] The invention relates to an implementation scheme for sharing spectrum between a primary user and a secondary user in a cognitive radio system, and belongs to the technical field of communication. Background technique [0002] With the continuous development of wireless communication towards broadband, seamless and intelligent, wireless spectrum has become an indispensable and precious resource in modern society. In fact, in many frequency bands, spectrum access is a more important issue than physical spectrum scarcity. Due to the low spectrum utilization rate due to the existing spectrum authorization mechanism, a large amount of spectrum resources are wasted. In recent years, the cognitive radio (CR, cognitive radio) technology has the potential to intelligently utilize a large amount of idle frequency spectrum and communicate with high reliability anytime, anywhere without affecting other authorized users, that is, primary users (PUs, primary users)...

AI Technical Summary

Problems solved by technology

[0005] Although these methods have made some progress in some aspects of spectrum sharing, they often regard the demand of each secondary user as a fixed value, because they cannot reflect the actual needs of users for spectrum in real time, and cannot achieve the spectrum well. shared fairness

Or both are based on non-cooperative game models with no binding agreements between secondary users, and usually ignore the negative impact of secondary users' behavior on primary users, so there are still many imperfections to be improved

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