Collaborative spectrum sharing dynamic incentive mechanism design method based on contract theory

Abstract

The invention belongs to the technical field of a wireless collaborative spectrum sharing system and specifically relates to a collaborative spectrum sharing dynamic incentive mechanism design method based on the contract theory. The method is characterized by mapping a wireless collaborative spectrum sharing network into a labor market, introducing a market-driven contract model to a collaborative spectrum sharing mechanism, and establishing a primary user (PU) module and a secondary user (SU) model; and with selfishness of nodes in the cooperative spectrum sharing network and asymmetry of network information being taken into consideration, for dynamic characteristics of factors of wireless node location and channel conditions and the like, designing a dynamic contract model for two-stage collaborative spectrum sharing, and with incentive compatibility and participation constraint conditions being combined, realizing screening of the SU private information to encourage active participation in collaboration, thereby realizing a purpose of efficient utilization of wireless spectrum resources.

Description

technical field [0001] The invention belongs to the technical field of wireless collaborative spectrum sharing systems, and in particular relates to a method for designing a dynamic incentive mechanism for collaborative spectrum sharing based on contract theory. Background technique [0002] With the explosive growth of wireless services and applications, the contradiction between the supply and demand of spectrum resources and the low utilization rate of resources, the above bottlenecks have become urgent problems to be solved. The cooperative spectrum sharing technology utilizes the mutual cooperation between the primary user (Primary User, PU) and the secondary user (Secondary User, SU), and can effectively improve the spectrum utilization rate of the system. The key to the cooperative spectrum sharing technology is how to establish an accurate cooperative spectrum sharing model, which usually requires as complete network information as possible. However, in the actual c...

AI Technical Summary

Problems solved by technology

Existing cooperative spectrum sharing incentive technology mainly studies static contract design. However, in the actual cooperative spectrum sharing network, due to factors such as wireless user mobility and wireless channel fading, the network information of SU is changing.

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