Designs of cell edge routers in the Optical Cell Switching (OCS) network

Shi Jiang, H. Jonathan Chao

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Optical cell switching (OCS) Is a new flexible all-optical switching paradigm. An OCS consists of cell edge routers (CER) and core switches (OCX). The CER Is the Interface between the electrical domain and the optical domain, while the OCX Is the all optical packet switch without opto-electro-optical (OEO) conversion. In our previous research we have proposed a low complexity and highly scalable switch architecture for the OCX with several high performance scheduling algorithms. In this paper, we focus on the design of the CER. To maximize the optical bandwidth utilization and minimize the packet delay within the OCS, most of OCS Intelligence and functionalities are build In the CER. To ensure the performance and the quality of the OCS network, we propose two practical and scalable switch architectures and corresponding efficient scheduling algorithms for ingress and egress CERs accordingly. We show by simulations that with the proposed scheduling algorithms both CERs can achieve ∼100% throughput. Additionally, the complexity of both scheduling algorithms at two routers are only O(log(N)).

Original languageEnglish (US)
Title of host publicationGLOBECOM'05
Subtitle of host publicationIEEE Global Telecommunications Conference, 2005
Number of pages6
StatePublished - 2005
EventGLOBECOM'05: IEEE Global Telecommunications Conference, 2005 - St. Louis, MO, United States
Duration: Nov 28 2005Dec 2 2005

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


OtherGLOBECOM'05: IEEE Global Telecommunications Conference, 2005
Country/TerritoryUnited States
CitySt. Louis, MO


  • All-optical network
  • Cell edge router
  • Optical cell switching

ASJC Scopus subject areas

  • General Engineering


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