| 一种多属性决策的异构网络选择算法 |
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| 引用本文： | 王康,曾志民,冯春燕,张天魁. 一种多属性决策的异构网络选择算法[J]. 无线电工程, 2009, 39(1): 1-3 |
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| 作者姓名： | 王康 曾志民 冯春燕 张天魁 |
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| 作者单位： | 北京邮电大学,通信网络综合技术研究所,北京,100876 |
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| 摘 要： | 针对异构网络融合环境下的网络选择不能仅依靠物理信号强度的特点,利用多属性决策理论提出了一种异构网络选择算法。该算法考虑业务要求、用户喜好以及网络差异,通过层次分析法和熵值法确定网络属性的权重,并由此计算可得网络性能,选出最优网络。仿真结果表明,此算法可以准确选择接入网络,并当用户在网络边缘做兵乓运动时有效减小切换次数,降低丢包率。
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| 关 键 词： | 异构无线网络 网络选择 多属性决策 权重 |
A Heterogeneous Network Selection Algorithm Based on Multi-attribute Decision Making Method |
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| WANG Kang,ZHENG Zhi-min,FENG Chun-yan,ZHANG Tian-kui. A Heterogeneous Network Selection Algorithm Based on Multi-attribute Decision Making Method[J]. Radio Engineering of China, 2009, 39(1): 1-3 |
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| Authors: | WANG Kang ZHENG Zhi-min FENG Chun-yan ZHANG Tian-kui |
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| Affiliation: | ( Institute of Communication Networks Integrated Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China ) |
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| Abstract: | The selection of access network in heterogeneous network environment can not only be based on physical signal intensity, so a network selection algorithm based on muhi-attrlbute decision making is proposed. With traffic requirements, preference of user and difference of available networks considered, the algorithm calculates the weights of network attributes using analytic hierarchy process and entropy theory. Then, the performance of each available network is counted, based on which the optimum network is selected. Simulation results show that the algorithm performs well in network selection, and reduces the number of handover times and the packet loss probability as the user moves through the network boundary frequently. |
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| Keywords: | heterogeneous wireless network network selection multi-attribute making decision weight |
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