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Network selecting method based on multi-attribute decision-making and group decision-making

A multi-attribute decision-making and network selection technology, applied in access restriction, electrical components, wireless communication, etc., can solve problems such as no discussion, and achieve the effect of reducing the number of handovers

Inactive Publication Date: 2012-11-14
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Considering that in the actual network selection, not only the objective attributes of the network but also the user's preferences need to be considered, so many literatures combine subjective and objective decision-making methods for network selection, and the obtained two sets of weight vectors are passed through a simple linear Weighted to form a new weight vector, but there is no discussion on how to select linear weighting factors and the rationality of the synthetic weight vector

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  • Network selecting method based on multi-attribute decision-making and group decision-making

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Embodiment Construction

[0019] 1. Analytic Hierarchy Process (AHP)

[0020] The AHP method is a multi-attribute decision analysis method combining quantitative and qualitative methods. The AHP method is to decompose the relevant attributes of the decision-making problem into goals, criteria, plans, etc., and form a hierarchical form according to the dominance relationship between elements, and use a scale to quantify people's subjective judgments, and then proceed on this basis. A decision-making method of quantitative analysis. In each layer, the importance of attributes is determined by comparing two attributes, and then the evaluation results of each layer are integrated to obtain the total ranking of the relative importance of alternatives in the solution layer. It stratifies and quantifies people's thinking process, and provides quantitative basis for decision-making, forecasting or control through mathematical analysis. It is especially suitable for occasions where people's qualitative judgme...

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Abstract

Network selecting is a key problem of wireless resource management under a heterogeneous network scene. The invention provides a network selecting method based on multi-attribute decision-making and group decision-making. First, a subjective decision-making result and an objective decision-making result are obtained through a multi-attribute decision-making method, the subjective decision-making result and the objective decision-making result are obtained through a level analysis method and an entropy weight method respectively, then the subjective decision-making result and the objective decision-making result are combined through the group decision-making, compatible theory in the group decision-making is adopted for judging rationality of the combined result, whether the combined result has rationality is judged, if the result is not reasonable, decision-making is required, and combination is conducted again. The decision-making is conducted for a network according to the combined result, and a suitable network is selected for users. The network selecting method not only gives consideration to objective attribute, but also gives consideration to preference of the users, and the users can not select some networks with poor performance according to preference of the users. The network selecting method not only can effectively reduce times of switching, but also can provide satisfactory service quality for the users.

Description

technical field [0001] The invention relates to a network selection method based on multi-attribute decision-making and group decision-making in a heterogeneous wireless network, and belongs to the technical field of wireless communication. Background technique [0002] With the development of communication technology, there are many wireless communication systems suitable for different scenarios, such as GSM, WCDMA, WiMAX, Wi-Fi and LTE. There are big differences, and the scenarios they apply to have different emphases, and it is difficult to replace each other. The development trend of next-generation wireless networks is undoubtedly the integration of these heterogeneous networks, but the main difficulty brought about by the integration of heterogeneous networks is the network selection problem to be performed when accessing or switching. The task of network selection is to provide users with satisfactory service quality while reducing the service cost as much as possib...

Claims

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Application Information

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IPC IPC(8): H04W48/18
Inventor 朱琦施政朱洪波杨龙祥
Owner NANJING UNIV OF POSTS & TELECOMM
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