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中文摘要：
为解决在异构网络环境选择最佳的接入网络问题,提出一种结合综合赋权的异构网络选择算法。在用户端采用层次分析法判断用户偏好,在网络端采用基于指标相关性的客观赋权法判断网络客观状态,并结合基于离差极小化的综合赋权法得到最终权重,同时运用理想值近似排序法进行网络排序,接入最佳网络。基于Matlab的仿真结果表明,该方法能根据不同业务结合网络性能及用户需求选择最佳的接入网络,减少了频繁切换,提高了网络选择结果的合理性与有效性。
英文摘要：
A heterogeneous network selection algorithm based on the subjective and objective weights is proposed for the selection of the most optimal access network. On the user side,analytic hierarchy process（ AHP） is used to determine the user preference. On the network side,criteria importance by intercriteria correlation（ CRITIC） method is used to determine the network objective state. Finally,the user preferences and network status collaborative judgment are integrated for the choice of the optimal network by technique for order preference by similarity to an ideal solution（ TOPSIS）. Simulation results show that the method can comprehensively consider the user service type and network performance objectively,and improve the rationality and validity of network selection.
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