A design of WDM/TDM-PON provisioning for future optical access network upgrade

Sungkuen Lee, Eallae Kim, Yongwon Lee, Sangrok Lee, Daekwang Jung, Seongtaek Hwang, Yunje Oh, Jinwoo Park

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this paper, we propose a PON-based access network based on conventional TDM-PON architecture for the smooth, economical and effective transition to the future optical access network. We also propose a dynamic MAC protocol for wavelength channel and bandwidth allocation in the TDM-PON subscriber networks, which can provide enhanced network scalability and flexibility, and greater adaptability to the increasing number of subscribers in TDM-PON. In the proposed dynamic MAC protocol, several key functions are manifested, such as multiple wavelength channel utilization and dynamic allocation of multiple time-slots to a user depending on SLA between OLT and ONUs to meet QoS requirements. A dedicated control channel is used for delivering the request and status information between OLT and ONUs. We evaluate the performances of the proposed MAC protocol thru a statistical queuing analysis and numerical simulations. In addition, through simulations using various traffic models we verify the superior performance of the proposed approach by comparing it with conventional TDM-PONs.

Original languageEnglish
Pages (from-to)2456-2463
Number of pages8
JournalIEICE Transactions on Communications
VolumeE90-B
Issue number9
DOIs
Publication statusPublished - 2007 Sep

Keywords

  • Dynamic bandwidth allocation (DBA)
  • Passive optical network (PON)
  • Time division multiplexing (TDM)
  • Wavelength division multiplexing (WDM)

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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