Opportunity network evolution algorithm and device for promoting node cooperation

Abstract

The invention provides an opportunity network evolution algorithm for promoting node cooperation. The algorithm comprises the following steps: firstly, establishing a socialized distributed credit model, including creditability quantification, a direct credit computation method, and an indirect credit evaluation method; secondly, establishing a corresponding incentive model based on creditability, including a creditability-based payoff function design, a creditability optimization based self-adaptive learning mechanism, and the like; thirdly, establishing a multi-population asymmetric evolution model, including multi-population classification, a strategy updating mechanism, and the like; and finally, designing and achieving the evolution algorithm based on the models, including a security cooperation evolution algorithm, and a firefly algorithm for solving the problem of searching the optimum among multiple objects. The evolution model, the credit incentive model and the credit evaluation method provided by the invention are applicable and reliable, and a dynamic security mechanism is operable.

Description

technical field [0001] The invention belongs to the technical field of Internet communication, and in particular relates to an opportunistic network evolution algorithm and a device for promoting node cooperation. Background technique [0002] With the rapid development of smart mobile devices, an impromptu and instant new type of relational network-opportunistic network has emerged as the times require, and it will become a new popular development direction in the next five years after social networks. Social relations in opportunistic networks are based on Topics-interests-needs-locations are randomly generated, such as location-based close encounter communication, or algorithm-based dynamic coupling-relational connections, etc.; it is an innovative application-oriented network form that combines opportunity networks and social networks. [0003] In the communication process of opportunistic networks, messages are transmitted through the cooperative mode of "store-carry-fo...

AI Technical Summary

Problems solved by technology

Although the research on trust model-related technologies has been done for a long time, it cannot be directly applied to opportunistic networks; due to the social nature, immediacy, limited resources, and P2P distribution of opportunistic networks, its impact on trust is determined from many aspects and perspectives. , although the environmental decision-making factors of trust are known to a certain extent, how to calculate the weight of these influencing factors is still a very big challenge, and trust is dynamically changing, how to establish a dynamic reputation evaluation model of opportunistic networks is an urgent need solved problem

[0009] To sum up, due to the characteristics of sociality, immediacy and P2P distribution of opportunistic networks, traditional security protection technologies cannot adapt well, although a few researchers have begun to pay attention to security issues in opportunistic networks. , but they all belong to the review and research of opportunistic network problems, while the research on security cooperation in opportunistic networks is currently in its infancy

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