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A Study on Differentiated Service Queuing Scheme with an Overflow Buffer Allocation Within a UMTS Core Network

机译：UMTS核心网中带有溢出缓冲区分配的区分服务排队方案的研究

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According to the QoS features of the four types of UMTS traffic, this study proposes a priority-based queuing scheme to support differentiated services among all UMTS traffic; it bases on packet transmission priorities of four types of UMTS traffic to handle packets forwarding in a gateway within a UMTS core network. In the proposed queuing scheme, a static dedicated logical queuing buffer allocation and a dynamic overflow buffer allocation are used to support packet enqueuing/dequeuing jobs. In this study, the ns2 network simulator is used as a simulation platform and different categories of simulation scenarios are executed. Moreover, the IETF DiffServ scheme is used as a comparison to understand the packet forwarding performance of the proposed scheme. By analyzing simulation data, two important points can be drawn. The proposed queuing scheme supports a differentiated packet forwarding behavior among four types of UMTS traffic. And, the differentiated packet forwarding behaviors with the proposed queuing scheme are similar to the packet forwarding behavior with the IETF DiffServ scheme.
机译：根据四种类型的UMTS流量的QoS特性，本研究提出了一种基于优先级的排队方案，以支持所有UMTS流量之间的区分服务。它基于四种UMTS流量的数据包传输优先级来处理UMTS核心网络中网关中的数据包转发。在提出的排队方案中，静态专用逻辑排队缓冲区分配和动态溢出缓冲区分配用于支持数据包入队/出队作业。在本研究中，将ns2网络模拟器用作模拟平台，并执行不同类别的模拟方案。此外，将IETF DiffServ方案用作比较以了解所提出方案的数据包转发性能。通过分析仿真数据，可以得出两个要点。所提出的排队方案支持四种类型的UMTS流量之间的差异化分组转发行为。并且，所提出的排队方案的差异化分组转发行为与IETF DiffServ方案的分组转发行为相似。

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