Modeling and analysis of QoS class mapping for hybrid QoS domains using Flow Aggregate
Modeling and analysis of QoS class mapping for hybrid QoS domains using Flow Aggregate
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DOI：
10.1109/iwcmc.2013.6583609
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发表时间：
2013-07
期刊：
影响因子：
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通讯作者：
Zaijian Wang;Yu-ning Dong;Hai-xian Shi;Hui Zhang
中科院分区：
文献类型：
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作者：
Zaijian Wang;Yu-ning Dong;Hai-xian Shi;Hui Zhang
为了分析网络QoS（服务质量）性能，更好地利用网络资源，基于网络演算理论，建立了混合QoS域的QoS类映射分析模型。基于该模型，提出了一种具有流聚合的弹性QoS映射方案(EQM-FA)，以支持异构无线网络上多媒体服务的端到端QoS。在EQM-FA中，业务流的QoS要求由唯一的流聚合标识符来指示，该流聚合标识符可以通过服务流图上描述QoS的信息来描述，该服务流图是相关QoS参数的多维空间。通过位于不同 QoS 域边界的流聚合标识符和映射执行器，EQM-FA 允许具有不同 QoS 类别粒度的不同网络之间平滑的 QoS 类别映射。数值分析和模拟研究都证明了该方法的有效性。
To analyze network QoS (Quality of Service) performance and better utilize network resources, this paper develops an analytical model of QoS class mapping for hybrid QoS domains based on network calculus theory. Based on this model, an elastic QoS Mapping scheme with Flow Aggregate (EQM-FA) is proposed to support end-to-end QoS of multimedia services over heterogeneous wireless networks. In EQM-FA, the QoS requirements of service flows are indicated by a unique flow aggregate identifier which can be described by the information describing QoS on a service flow map which is a multidimensional space of relevant QoS parameters. With flow aggregate identifier and mapping executors sitting at the border of different QoS domains, EQM-FA allows smooth QoS class mapping between different networks with different granularity of QoS class. Both numerical analysis and simulation studies are given to demonstrate the efficacy of the proposed method.