The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo investiga a eficácia de uma rede que utiliza taxa de bits não especificada (UBR) para um canal virtual (VC) acomodando conexões AAL2. AAL2 é uma nova camada de adaptação ATM que foi recentemente padronizada. Por ser projetado para transportar eficientemente sinais de voz com baixa taxa de bits, deve ser utilizado no backbone ATM de redes móveis, especialmente na rede IMT-2000 (rede de Telecomunicações Móveis Internacionais no Ano 2000). Normalmente, VCs de taxa de bits constante (CBR) ou VCs de taxa de bits variável (VBR) são usados para acomodar conexões AAL2. Em nosso trabalho anterior, entretanto, mostramos que usar VCs UBR (equivalente a nenhum gerenciamento de largura de banda no nível de VC) para acomodar conexões AAL2 precisa de muito menos largura de banda VP do que usar VCs CBR ou VBR. Neste artigo, os resultados anteriores são estendidos para a rede e a redução da largura de banda da rede mostra-se maior que a do caminho virtual. Além disso, a redução de largura de banda obtida com o uso de VCs UBR é comparável àquela obtida com a introdução de nós de comutação AAL2. Com base nestes resultados, é discutida a rede central do IMT-2000.
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Hiroshi SAITO, "Effectiveness of UBR VC Approach in AAL2 Networks and Its Application to IMT-2000" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 11, pp. 2486-2493, November 2000, doi: .
Abstract: This paper investigates the effectiveness of a network that uses unspecified bit rate (UBR) for a virtual channel (VC) accommodating AAL2 connections. AAL2 is a new ATM adaptation layer that has recently been standardized. Since it is designed to carry low-bit-rate voice signals efficiently, it should be used in the ATM backbone for mobile networks, especially in the IMT-2000 network (International Mobile Telecommunication in the Year 2000 network). Normally, constant-bit-rate (CBR) VCs or variable-bit-rate (VBR) VCs are used to accommodate AAL2 connections. In our previous work, however, we showed that using UBR VCs (equivalent to no VC-level bandwidth management) to accommodate AAL2 connections needs much less VP bandwidth than using CBR or VBR VCs. In this paper, the previous results are extended to the network and the network bandwidth reduction is shown to be larger than that of the virtual path. In addition, the bandwidth reduction achieved by using UBR VCs is comparable with that achieved by introducing AAL2 switching nodes. Based on these results, the core network of the IMT-2000 is discussed.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_11_2486/_p
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@ARTICLE{e83-b_11_2486,
author={Hiroshi SAITO, },
journal={IEICE TRANSACTIONS on Communications},
title={Effectiveness of UBR VC Approach in AAL2 Networks and Its Application to IMT-2000},
year={2000},
volume={E83-B},
number={11},
pages={2486-2493},
abstract={This paper investigates the effectiveness of a network that uses unspecified bit rate (UBR) for a virtual channel (VC) accommodating AAL2 connections. AAL2 is a new ATM adaptation layer that has recently been standardized. Since it is designed to carry low-bit-rate voice signals efficiently, it should be used in the ATM backbone for mobile networks, especially in the IMT-2000 network (International Mobile Telecommunication in the Year 2000 network). Normally, constant-bit-rate (CBR) VCs or variable-bit-rate (VBR) VCs are used to accommodate AAL2 connections. In our previous work, however, we showed that using UBR VCs (equivalent to no VC-level bandwidth management) to accommodate AAL2 connections needs much less VP bandwidth than using CBR or VBR VCs. In this paper, the previous results are extended to the network and the network bandwidth reduction is shown to be larger than that of the virtual path. In addition, the bandwidth reduction achieved by using UBR VCs is comparable with that achieved by introducing AAL2 switching nodes. Based on these results, the core network of the IMT-2000 is discussed.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - Effectiveness of UBR VC Approach in AAL2 Networks and Its Application to IMT-2000
T2 - IEICE TRANSACTIONS on Communications
SP - 2486
EP - 2493
AU - Hiroshi SAITO
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2000
AB - This paper investigates the effectiveness of a network that uses unspecified bit rate (UBR) for a virtual channel (VC) accommodating AAL2 connections. AAL2 is a new ATM adaptation layer that has recently been standardized. Since it is designed to carry low-bit-rate voice signals efficiently, it should be used in the ATM backbone for mobile networks, especially in the IMT-2000 network (International Mobile Telecommunication in the Year 2000 network). Normally, constant-bit-rate (CBR) VCs or variable-bit-rate (VBR) VCs are used to accommodate AAL2 connections. In our previous work, however, we showed that using UBR VCs (equivalent to no VC-level bandwidth management) to accommodate AAL2 connections needs much less VP bandwidth than using CBR or VBR VCs. In this paper, the previous results are extended to the network and the network bandwidth reduction is shown to be larger than that of the virtual path. In addition, the bandwidth reduction achieved by using UBR VCs is comparable with that achieved by introducing AAL2 switching nodes. Based on these results, the core network of the IMT-2000 is discussed.
ER -