A Selection Method for Heterogeneous Wireless Networks Based on Synergy Theory

Abstract

The invention discloses a heterogeneous wireless network selection method based on synergy theory, comprising the following steps: S1, acquiring network attribute data and current user service type; S2, selecting different utility functions, and constructing attribute utility matrix; S3, calculating user Preferences and the weight of each attribute in business scenarios; S4. Use TOPSIS and MEW methods to calculate user preferences and network scores in business scenarios; S5. According to synergy theory, comprehensively consider user preferences and business types, and select the best network access. The present invention is based on multi-attribute decision-making, uses synergy theory, comprehensively considers factors such as user preference, service characteristics and network status, and selects the best network to achieve the best balance between user preference and service characteristics. Compared with other multi-attribute network selection, this method not only guarantees the QoS of the service, but also considers the needs of user preferences, and achieves a balance in all aspects, improves the objectivity and stability of network selection, avoids the ping-pong effect, and saves resources .

Description

technical field [0001] The invention belongs to the technical field of heterogeneous wireless networks, and in particular relates to a method for selecting heterogeneous wireless networks based on synergy theory. Background technique [0002] In the traditional heterogeneous wireless network, the selection of the optimal network depends on different services and multiple attributes such as bandwidth, delay, jitter, packet loss rate, cost, etc., that is, the selection of the optimal network in the heterogeneous wireless network is It is a multi-attribute decision-making problem, but with the diversification of user and service needs, the future wireless network selection needs to consider a variety of factors, and provide differentiated services according to different services and user preferences. However, most of the current literature only considers a single factor of user preference or business characteristics, or just makes a simple linear combination of these factors, a...

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Problems solved by technology

[0002] In a traditional heterogeneous wireless network, the selection of the optimal network depends on multiple attributes such as bandwidth, delay, jitter, packet loss rate, and cost according to different services. That is, the optimal network selection in a heterogeneous wireless network is It is a multi-attribute decision-making problem. However, with the diversification of users and service requirements, future wireless network selection needs to consider multiple factors, and provide differentiated services according to different services and user preferences. User preferences have become an important factor that cannot be ignored. However, most of the current literature only considers a single factor of user preference or business characteristics, or simply makes a simple linear combination of these factors, and cannot objectively and accurately consider these factors

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