UTRAN中AAL2协议的性能

2nd European Conference on Universal Multiservice Networks. ECUMN'2001 (Cat. No.02EX563) Pub Date : 2002-08-07 DOI:10.1109/ECUMN.2002.1002093

R. Makké, S. Tohmé, Jean-Yves Cochennec, S. Pautonnier

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引用次数: 13

摘要

通用移动通信系统(UMTS)是未来移动通信系统的网络。UMTS的接入网称为UTRAN (Universal Terrestrial Radio access network)。在3GPP标准的第99版中，AAL2/ATM协议被选为UTRAN中的传输协议。本文研究了在UTRAN环境下AAL2协议的一些性能问题:Timer-CU对流量性能的影响、AAL2多路复用器中的调度机制以及AAL2交换。我们证明了在单服务VC的情况下，可以选择Timer-CU的最优值。为了选择适合CPS多路复用器的调度机制(WRR、EDF、FIFO、Priority)，我们对不同的调度机制(WRR、EDF、FIFO、Priority)进行了比较，最后对AAL2交换和ATM交换进行了比较。

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Performance of the AAL2 protocol within the UTRAN

The UMTS (Universal Mobile Telecommunication System) is the future network for mobile communication systems. The access network of UMTS is called UTRAN (Universal Terrestrial Radio Access Network). In Release 99 of the 3GPP standard, the AAL2/ATM protocol is chosen as a transport protocol within the UTRAN. In this paper, we studied some performance issues of the AAL2 protocol in the context of the UTRAN: the impact of the Timer-CU on traffic performance, the scheduling mechanism in the AAL2 multiplexer and the AAL2 switching. We show that an optimal value of the Timer-CU may be chosen in the case of a mono-service VC. We present a comparison between different scheduling mechanisms (WRR, EDF, FIFO, Priority) in order to chose the suitable algorithm for the CPS multiplexer and finally we present a comparison between the AAL2 switching and the ATM switching.

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2nd European Conference on Universal Multiservice Networks. ECUMN'2001 (Cat. No.02EX563)

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