한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제30권4B호
  • /
  • Pages.186-191
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  • 2005
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  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Grant Scheduling Method to Improve the Channel Efficiency of Ethernet Passive Optical Network

  • Lee Yutae (Department of Information and Communication Engineering, Dongeui University) ;
  • Chung Hae (Kunoh National Institute of Technology)
  • 발행 : 2005.04.01
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초록

To provide fairness among different ONUs in EPON, the upstream channel remains idle for some time after OLT receives the buffer status from all ONUs every cycle, which decreases the utilization and increases the delay. To solve this deficiency, we present a new grant scheduling method. The method consists of dividing ONUs into several sets where OLT can schedule ONUs in one set while others will be transmitting their traffic. This method will better utilize the bandwidth of EPON. The numerical results show that the larger the number of ONU sets is the smaller the minimum overhead becomes.

키워드

참고문헌

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