ETRI Journal

  • 제27권6호
  • /
  • Pages.802-805
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  • 2005
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Inter-ONU Bandwidth Scheduling by Using Threshold Reporting and Adaptive Polling for QoS in EPONs

  • 투고 : 2005.10.14
  • 발행 : 2005.12.31
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초록

A dynamic bandwidth allocation (DBA) scheme, an inter -optical network unit (ONU) bandwidth scheduling, is presented to provide quality of service (QoS) to different classes of packets in Ethernet passive optical networks (EPONs). This scheme, referred to as TADBA, is based on efficient threshold reporting from, and adaptive polling order rearranging of, ONUs. It has been shown that the network resources are efficiently allocated among the three traffic classes by guaranteeing the requested QoS, adaptively rearranging the polling orders, and avoiding nearly all fragmentation losses. Simulation results using an OPNET network simulator show that TADBA performs well in comparison to the available allocation scheme for the given parameters, such as packet delay and channel utilization.

키워드

참고문헌

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  3. IEEE J. Selected Areas in Communications v.21 no.9 Dynamic Bandwidth Allocation for Quality-of-Service over Ethemet PONs Assi, C.M.;Ye, Y.;Dixit, S.;Ali, M.A.
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  5. IEEE Communications Letters Loss Probability Behavior of Pareto/M/1/K Queue Koh, Y.;Kim, K.
  6. IEEE Std. 802.3ah, IEEE Std for Information Technology - Telecommunications and Information Exchange between Systems - Local and Metropolitan Area Networks - Specific Requirements IEEE