Excitation mechanism for heterogeneous D2D content sharing network

Abstract

The invention discloses an incentive mechanism for a heterogeneous D2D content sharing network. According to the incentive mechanism, the credibility of the user nodes is judged according to the credibility under the D2D network environment so as to determine whether to share files with the user nodes or which grades of files are shared with the user nodes. However, the trust degree is closely related to behaviors of the user nodes in the network, and if the user nodes can continuously and actively participate in cooperation and provide high-quality file resources for other user nodes, the trust degree of the user nodes can be continuously improved on the basis of the basic trust value; wherein a higher trust degree enables a file resource provider to have a higher probability to share a file with a higher level with the file resource provider; otherwise, if the user node has a malicious behavior, the trust value is reduced, and a resource provider only shares a lower-level file with the user node. In this way, the user nodes are encouraged to continuously provide high-quality resources and services through mutual cooperation of the trust degree and the confidentiality level of the file, so that the network is guided to form a benign trend of mutual benefit and cooperation.

Description

technical field [0001] The invention belongs to the field of wireless D2D communication content sharing, and relates to how to select a file resource provider and how to provide files for other resource requesters due to the mobility of the user equipment itself under the coverage of different small base stations in a heterogeneous D2D network. The problem of resources, and the mechanism to optimize them in the process of content sharing. Background technique [0002] D2D communication (Device to Device, device to device) is a new type of technology that allows terminals to communicate directly by multiplexing cell resources under the control of the system, and solves the problem of lack of spectrum resources in wireless communication systems to a certain extent. D2D technology can be applied to mobile cellular networks to improve resource utilization and network capacity. The resource occupied by each D2D communication link is equal to that occupied by a cellular communica...

AI Technical Summary

Problems solved by technology

When designing D2D communication, it should not be limited to one service, but should support multiple services. In addition, when D2D communication is not used, it should not bring additional signaling overhead to the system.

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