Network selection method based on grey relational analytic hierarchy

Abstract

The invention discloses a network selection method based on grey relational analytic hierarchy. The network selection method comprises the following steps of (1) utilizing an analytic hierarchy, establishing a hierarchical order and constructing a judgment matrix (formula); (2) calculating a normalized weight omegaj; (3) utilizing an entropy weight method, constructing an evaluation matrix (formula) and normalizing the evaluation matrix; (4) solving an entropy Ej of a decision-making property, and calculating the entropy weight phij; (5) utilizing a grey relational method, constructing a global decision matrix (formula) and finding out a group of reference solutions (formula); and (6) calculating a grey relational grade (formula), carrying out grey multi-attribute judgment (formula) and selecting a network having a largest correlation coefficient with the reference network as the optimal network. According to the method, the best network which is most matched with the reference networkis selected according to the grey correlation method, the problem that the network decision-making property is not a network selection problem of a monotonous function can be effectively solved.

Description

technical field [0001] The invention relates to a network selection method based on gray level correlation hierarchy analysis in a power wireless communication system, belonging to the technical field of wireless communication. Background technique [0002] With the development of the power industry, the scale of the power grid is gradually expanding, and the network topology is becoming more and more complex. The current backbone network of power communication mainly based on optical fiber communication can no longer meet the needs of various services. For long-distance access nodes, directly laying optical fiber lines is expensive and lacks practical value; under sudden disasters, it is difficult to repair fiber optic line failures in time; Substation commissioning. In these fields where wired communication cannot play a key role, the application of wireless communication network technology and its networking system can provide high-quality communication guarantee. [00...

AI Technical Summary

Problems solved by technology

[0002] With the development of the power industry, the scale of the power grid is gradually expanding, and the network topology is becoming more and more complex. The current backbone network of power communication based on optical fiber communication can no longer meet the needs of various businesses.

For long-distance access nodes, directly laying optical fiber lines is expensive and lacks practical value; under sudden disasters, it is difficult to repair fiber optic line failures in time; Substation commissioning

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