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

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Abstract

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.

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  1. Department of Information Management, College of Management, National Defense University, Taipei, Taiwan, ROC

    Chen-Hua Fu

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  1. Chen-Hua Fu
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Correspondence to Chen-Hua Fu.

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Fu, CH. A Study on Differentiated Service Queuing Scheme with an Overflow Buffer Allocation Within a UMTS Core Network. Wireless Pers Commun 55, 325–347 (2010). https://doi.org/10.1007/s11277-009-9804-2

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  • DOI: https://doi.org/10.1007/s11277-009-9804-2

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