Network selection with imprecise information in heterogeneous all-IP wireless systems
Network selection with imprecise information in heterogeneous all-IP wireless systems
复制标题
异构全IP无线系统中信息不精确的网络选择
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Victor C. M. Leung
中科院分区：
文献类型：
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作者：
F. Bari;Victor C. M. Leung
在全IP异质无线接入网络环境中，选择最优的服务提供网络是一个需要解决的重要问题。在这样的环境中，有几个网络参数会影响网络选择的过程，理想情况下，决策者应该知道它们的精确值。然而，在现实中，许多参数的精确值将是未知的，例如那些与服务质量有关的参数。因此，需要为某些参数值不太可靠或不可用的情况开发一种网络选择机制。提出了一种新颖的综合网络选择方法，该方法将参数估计技术、模糊理论和多属性决策算法相结合进行网络选择。此外，本文还提出了网络排名中的置信度的新概念，在最终决策过程中利用了额外的可用信息。所提出的技术在异质全IP无线接入环境中提供了改进的网络选择。
Selection of an optimal service delivery network is an important problem to solve in an all IP heterogeneous wireless access network environment. Several network parameters impact the process of network selection in such an environment and ideally their precise values should be known by the decision maker. In reality, however, the exact values for many of the parameters, e.g., those related to quality of service, will not be known. Hence there is a need to develop a network selection mechanism for scenarios when some of the parameter values are less reliable or unavailable. This paper describes a novel and comprehensive network selection approach that combines parameter estimation techniques with fuzzy theory and multi attribute decision making algorithm to perform network selection. In addition the paper proposes a new concept of Confidence Level in the network rankings that leverages additional available information in the final decision process. The proposed techniques provide improved network selection in heterogeneous all IP wireless access environment.