Spectrum contract based multi-user collaboration spectrum sharing method

Abstract

The invention discloses a spectrum contract based multi-user collaboration spectrum sharing method. The market driving based spectrum contract mechanism characteristics are combined to establish a PU (Primary User) and SU (Secondary User) model. The constraint on the selfishness and the individual rationality of the communication of both parties of a contact is considered to propose a spectrum contract framework to balance interests of the both parties so as to establish a multi-user collaboration spectrum sharing contract model under the symmetrical network information condition. The analysis on the moral hazard problem under various hidden action conditions is performed in the contract design process according to the asymmetry of the network information, a moral hazard model under the PU behavior measurable and SU behavior hidden condition, a moral hazard model under the PU behavior hidden and SU behavior measurable condition and a moral hazard model under the PU behavior hidden and SU behavior hidden condition are established, contract parameters are set to motivate the action of the both transaction parties, and accordingly the win-win situation of the interests is implemented and meanwhile the optimization on the network communication performance and the sharing of spectrum resources are ensured.

Description

technical field [0001] The invention belongs to the technical field of wireless communication systems and cognitive radio networks, and relates to a multi-user cooperative spectrum sharing method based on a spectrum contract. Background technique [0002] With the rapid development of wireless communication technology and the increasing demand for wireless services, wireless spectrum resources are increasingly scarce, and this problem has become a major bottleneck restricting the development of wireless networks. Cognitive radio technology can effectively solve the contradiction between the scarcity of wireless spectrum resources and the low utilization rate of spectrum by intelligently sensing idle spectrum and adaptive dynamic access to available frequency bands. It has become one of the hottest research fields in wireless communication. As an emerging technology in cognitive wireless networks, cooperative spectrum sharing can make full use of the diversity gain brought ab...

AI Technical Summary

Problems solved by technology

However, the current research on collaborative spectrum sharing modeling pays less attention to asymmetric network information such as private actions of both parties, which makes the model inaccurate; moreover, most studies only consider the modeling of a specific asymmetric network information , making the adaptability and scalability of the model poor

The existence of these problems makes it difficult for the current model to meet the accuracy and scalability requirements required for practical applications

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