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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Packet Delay and Loss Analysis of Traffic with Delay Priority in a DBA Scheme of an EPON

EPON의 DBA방안에서 지연 우선순위를 갖는 트래픽의 재킷 손실률과 지연 성능 분석

  • 박철근 (선문대학교 정보통신공학부) ;
  • 심세용 (㈜ 탑엔지니어링) ;
  • 정호석 (선문대학교 정보통신공학부)
  • Published : 2005.08.01
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Abstract

As the rapid increasement of the number of internet users has occured recently, many multimedia application services have been emerging. To improve quality of service, traffic can be suggested to be classified with priority in EPON(Ethernet Passive Optical Network), which is supporting the multimedia application services. In this paper, multimedia application services treat bandwidth classifying device in serving both delay sensitive traffic for real-time audio, video and voice data such as Von(Voice over Internet Protocol), and for real-time traffic such as BE(Best Effort). With looking through existing mechanisms, new mechanism to improve the quality will be suggested. The delay performances and packet losses of traffic achieved by supporting bandwidth allocation of upstream traffic in suggested mechanism will be analized with simulations.

인터넷 사용자의 급속한 증가와 더불어 다양한 멀티미디어 서비스가 출현함에 따라 다중서비스를 지원하는 EPON에서 서비스 품질을 지원하기 위해 트래픽은 우선순위에 따라 분류될 수 있다. EPON망에서의 멀티미디어 응용 서비스는 VoIP(Voice over Internet Protocol)등과 같은 음성 데이터 및 실시간 오디오$\cdot$비디오 등과 같이 지연에 민감한 트래픽을 제공하는 서비스와 BE(Best Effort)와 같은 비실시간 트래픽을 제공하는 서비스로 구분되는데 이러한 서비스들을 적절히 지원하는데 있어서 EPON의 상향 트래픽의 대역 할당 방안을 다룬다. 기존의 제안된 방안을 살펴보고 실시간 트래픽의 성능을 향상시킬 수 있는 새로운 방안을 제시한다. 제시한 방안으로 상향 트래픽의 대역 할당을 지원함으로서 얻을 수 있는 트래픽의 손실률과 지연을 시뮬레이션으로 분석한다.

Keywords

References

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