异构无线网络中的多准则动态接入选择

I. Smaoui, F. Zarai, R. Bouallègue, L. Kamoun
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引用次数: 23

摘要

异构无线网络环境下的业务交付需要选择最优接入网。事实上,选择非最优网络可能会导致不良影响,例如新呼叫阻塞和切换呼叫掉话率方面的更高成本或较差的服务体验。在这种环境下的网络选择受到与网络条件、应用参数、用户偏好和终端性能有关的几个因素的影响。本文首先描述了一种新的体系结构,它允许资源高效管理,旨在为每个应用程序选择“最适合”的网络接口。其次,它提出了一个全面的决策过程,对候选网络进行排名,以便向应用程序提供服务。该方案在求解多准则分析时采用TOPSIS方法进行决策。该模型中的无线网络代表备选方案,而网络和应用参数(带宽、接收信号强度、速度支持、负载因子和功耗成本)被视为确定最优网络的标准。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-criteria dynamic access selection in heterogeneous wireless networks
Service delivery in a heterogeneous wireless network environment requires the selection of an optimal access network. Indeed, the selection of a non-optimal network can result in undesirable effects such as higher costs in terms of new call blocking and handoff call dropping rates or poor service experience. Network selection in such an environment is influenced by several factors related to network conditions, application parameters, user preferences and terminal performances. This paper, first, describes a new architecture which allows a resource-efficient management that aims at selecting the “best-suited” network interface for each application. Second, it presents a comprehensive decision making process to rank candidate networks for service delivery to the application. The proposed scheme is based on a decision process using the TOPSIS method when solving the multi criteria analysis. The wireless networks in this model represent the alternatives, while the network and application parameters (bandwidth, Received Signal Strength, velocity support, load factor and power consumption cost) are considered as the criteria for determining the optimal network.
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