• Title/Summary/Keyword: Burst Assembler

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QoS Improvement Scheme in Optical Burst Switching using Dynamic Burst length Adjustment (광 버스트 스위칭에서 버스트 길이의 동적 조절을 통한 QoS 향상방법)

  • Sanghoon Hong;Lee, Sungchang
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.40 no.12
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    • pp.136-144
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    • 2003
  • In this paper, we propose a scheme that can control the loss probability of low priority class bursts by dynamically adjusting the assembly threshold of low priority class. The key ideas is that the loss Probability of the longer burst increases as the load increases, thus reduced low priority class burst length decreases the loss priority at high traffic load. To achieve this aim, we first derive the relation among the loss probability, the assembly threshold, and the traffic load. In this paper we derive the relation by curve fitting on the simulation results. The ingress edge routers periodically or by event-driven receives the proper corresponding assembly threshold information from the core routers. This assembly threshold is calculated from the derived relation so that the required loss probability of the low priority class bursts in the network is satisfied. The simulation results show that the proposed scheme performs well to meet the loss probability target as expected.