Cooperative communication incentive method based on behavior supervision in dual-information asymmetric environment

Abstract

The invention relates to a cooperative communication incentive method based on behavior supervision in a dual-information asymmetric environment. The method comprises the following steps: mapping a cooperative communication network into a labor market, introducing a supervision node, and establishing relay node, supervision node and source node models. On this basis, in consideration of the cooperative behavior that a source node employs the supervision node to monitor a relay node, the supervision node can obtain the accurate effort action of the relay node, and thus the problem of adverse selection can be solved only by designing an appropriate contract. The method also comprises the following steps: establishing a two-stage Stackelberg game model based on a contract theory, enabling the source node to provide contract terms to the supervision node at the first stage to obtain the own utility maximization, and enabling the supervision node to provide the contract terms to the relay node at the second stage to obtain the own utility maximization. By setting the contract terms, the problem of adverse selection caused by private information of the relay node after contract signing can be effectively avoided, and the implementation of cooperative communication can be ensured.

Description

technical field [0001] The invention belongs to the technical field of wireless cooperative communication systems, and in particular relates to a method for stimulating cooperative communication based on behavior supervision in a dual information asymmetric environment. Background technique [0002] The rapid development of wireless communication technology has made the problem of shortage of spectrum resources increasingly severe, which has become a bottleneck restricting the development of wireless communication. Cooperative communication technology can effectively improve the utilization rate of wireless spectrum by means of cooperative relay between wireless nodes. However, in the actual cognitive network and cooperative wireless network, the phenomenon of asymmetric network information generally exists, which makes it quite difficult to select a suitable relay node with good channel state and high communication ability among many relay nodes. [0003] The research on c...

AI Technical Summary

Problems solved by technology

However, in the actual cognitive network and cooperative wireless network, there is a common phenomenon of asymmetric network information, which makes it very difficult to select a suitable relay node with good channel status and high communication ability among many relay nodes.

[0003] The research on cooperative communication technology under the condition of asymmetric information is attracting the attention of researchers. Among them, the research on the sharing strategy based on spectrum contracts has just started, and most of the existing literature studies the adverse selection problem caused by the asymmetry of communication capability information of relay users. , less attention has been paid to the moral hazard problem caused by the information asymmetry of relay users' communication efforts

In addition, information asymmetry phenomena of abilities and efforts of unauthorized users (Secondary User, SU) are often concurrent. At present, the research on cooperative communication incentives in the dual information asymmetric environment pays less attention to real-time monitoring of private cooperative behavior of relay nodes.

Through literature search, no existing literature has been found that involves the collaborative communication incentive method based on behavior supervision in a dual information asymmetric environment

Images