A Novel QoS Mapping Mechanism in Integrated UMTS/WLANs
A Novel QoS Mapping Mechanism in Integrated UMTS/WLANs
复制标题
集成 UMTS/WLAN 中的一种新颖的 QoS 映射机制
DOI：
10.1007/s11277-014-2174-4
复制
发表时间：
2014-11
期刊：
影响因子：
--
通讯作者：
Weiwei Gao
中科院分区：
文献类型：
--
作者：
Weiwei Gao
由于UMTS/WLAN融合系统中存在QoS粒度不一致的问题，在接入网发生变化（即业务切换）时，如何构建有效的QoS映射机制以满足用户的需求是至关重要的。因此，本文提出了一种新的基于应用服务映射（ASM）的动态QoS映射机制，以支持端到端的QoS和最小化服务质量的下降。根据接入网相应的分类方法，对所有业务按优先级进行分类，并基于ASM将每个业务等级细分为三个子等级。该机制包含双向QoS映射调整机制，能够根据网络当前负载情况动态调整QoS映射关系，优化资源分配。在双向QoS映射调整机制中，采用了基于QoS业务子层和优先级的两级QoS映射选择算法，自适应地选择更精细的QoS。实验结果表明，该机制可以大大提高网络资源的利用率和用户满意度。
Due to the problem of different QoS granularity in integrated UMTS/WLANs, how we construct effective QoS mapping mechanism for user satisfaction is essential during the changes of access networks, so called, handoffs. So in this paper, a novel dynamical QoS mapping mechanism based on Application Service Map (ASM) is proposed in order to support end to end QoS and minimize the service quality degradations. Based on the access network corresponding classification methods, all services can be categorized by priority and subdivides each grade of service into three sub-levels based on ASM. The proposed mechanism contains a two-way QoS mapping adjustment mechanism and it can dynamically adjust the QoS mapping relationship to optimize the allocation of resource according to present load condition of network. And a two-level QoS mapping selection algorithm based on the sub-level and priority of QoS service is used in the two-way QoS mapping adjustment mechanism to adaptively select more refined QoS. As an experimental result, the proposed mechanism can greatly improve the utilization of network resource and the user’s satisfaction.
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DOI：
10.1109/wicom.2012.6478326
发表时间：
2012-09
期刊：
2012 8th International Conference on Wireless Communications, Networking and Mobile Computing
影响因子：
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作者：
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DOI：
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期刊：
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DOI：
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发表时间：
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期刊：
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影响因子：
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DOI：
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发表时间：
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期刊：
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影响因子：
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影响因子：
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