SDN-based access point decision method under space-ground integrated network authentication architecture

Abstract

The invention discloses an SDN-based access point decision method under a space-ground integrated network authentication architecture. The method comprises the following steps: screening access pointsto generate a candidate access point set; normalizing the sample; solving an attribute weight matrix; evaluating the candidate access points by using TOPSIS and RSR algorithms; weighting the two evaluation results, and arranging the candidate access point samples in a descending order according to the weighting results; and selecting the first n candidate access point samples as access points according to the access request number n. According to the invention, the SDN is introduced into an access authentication process in a space-ground integrated network scene; the access authentication efficiency and success rate are improved by optimizing the access point selection method, the two evaluation methods are combined, interference of abnormal values is avoided under the condition that original data information is not lost, meanwhile, the application range is expanded, and access point decisions are more scientific and comprehensive. By comprehensively considering the multi-dimensionalattributes and selecting the most ideal access point, the access efficiency and the resource utilization rate can be effectively improved.

Description

technical field [0001] The invention belongs to the field of software engineering, and in particular relates to an access point decision-making method under an SDN-based space-ground integrated network authentication framework. Background technique [0002] The space-ground integrated network is a highly heterogeneous network formed by the fusion of satellite networks, terrestrial networks and other networks. In recent years, satellite technology has developed rapidly and vigorously, and the communication needs of various mobile devices have continued to increase. The space-ground integrated network has important value in military and civilian applications. It not only conforms to the trend of future technological development, but also is a major strategic demand of China. Therefore, it is of great strategic significance to study the security technology under this network. However, the space-ground integrated network has the characteristics of limited node capabilities, ope...

AI Technical Summary

Problems solved by technology

But they did not take into account the optimization of the access point selection strategy in the access authentication process

[0004] However, most of the existing access authentication and handover authentication technologies study the key agreement mechanism from the perspective of cryptography, and seldom consider it from the perspective of authentication architecture and selection of access points.

And most of the schemes only consider the requirements of a single scenario or only make decisions around a single indicator, with low mobility and universality

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