Priority-Based Optimized Bandwidth Reservation for Efficient Differentiated Services in Ethernet-PON(<Special Section>Next Generation Photonic Network Technologies)
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概要
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In this paper, we address how to efficiently support differentiated services with the optimized bandwidth reservation in a polling-based generalized TDMA network like E-PON (Ethernet Passive Optical Network). In E-PON, performances of service differentiation for QoS (Quality of Service) guaranteed multiples services are directly affected by the bandwidth reservation algorithm of ONU (Optical Network Unit) in addition to the priority-based packet scheduling. Our proposed Service Quality Pre-engagement (SQP) algorithm reduces the system buffer size, the light-load penalty problem and the service interference among classes effectively by partially introducing the dynamic forward recurrence reservation scheme for QoS guaranteed classes. We also introduce the FRC(Forward Reservation Class) Selection algorithm that preserves the optimized reservation bandwidth to minimize the unnecessary reservation contentions. These algorithms do not mandate the basic concept of DBA and request the similar amount of REPORT bandwidth. The analytic and simulation results are performed to evaluate the performances of the proposed algorithms.
- 社団法人電子情報通信学会の論文
- 2005-10-01
著者
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KIM NamUk
Optical Internet Research Center (OIRC), Information and Communications University (ICU)
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KANG Minho
Optical Internet Research Center (OIRC), Information and Communications University (ICU)
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Kim Namuk
Optical Internet Research Center (oirc) Information And Communications University (icu)
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Kang Minho
Optical Internet Research Center (oirc) Information And Communications University (icu)
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