A multi-user collaborative spectrum sharing method based on spectrum contract

Abstract

The invention discloses a spectrum contract-based multi-user collaborative spectrum sharing method, which combines the characteristics of the market-driven spectrum contract mechanism to establish authorized user PU and non-authorized user SU models; taking into account the selfishness and personal rationality of the communication between the contracting parties Constraints, a spectrum contract framework is proposed to weigh the interests of both parties, so as to establish a multi-user collaborative spectrum sharing contract model under the condition of symmetrical network information; in view of the asymmetry of network information, in the process of contract design, the morality of various action concealment situations is analyzed. Risk issues, establish a moral hazard model in the case of PU behavior measurable and SU behavior concealment, a moral hazard model in the case of PU behavior concealment and SU behavior measurability, a moral hazard model in the case of PU behavior concealment and SU behavior concealment, by setting Contract parameters are used to motivate the actions of both parties to the transaction, and to ensure the optimization of network communication performance and the sharing of spectrum resources while achieving a win-win situation.

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

Images