基于多属性决策和群组决策的网络选择方法

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

Abstract

异构网络场景下无线资源管理的一个关键问题是网络选择,本发明提供了一种基于多属性决策和群组决策的网络选择方法。首先由多属性决策方法来得到主观与客观决策结果,利用层次分析法以及熵权法分别得到主观和客观决策结果,然后采用群组决策对主观和客观决策结果进行综合,并采用群组决策中的相容性理论对综合后结果的合理性进行判断,判断是否具有合理性,如果不合理,则需要修改决策,重新进行综合。最后将综合后的结果来对网络进行决策,为用户选择合适的网络。该方法不仅考虑到网络的客观属性,还考虑到了用户的偏好,保证了用户不会因为自己的偏好而选择一些性能较差的网络。本发明不但可以有效减少切换的次数而且还可以为用户提供满意的服务质量。
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.

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