Packet scheduling scheme for a 3-stage Clos-network photonic switch

H. Jonathan Chao, Zhigang Jing, Kung Li Deng

Research output: Contribution to journalConference articlepeer-review


This paper presents a new packet scheduling scheme, called Frame-based Exhaustive Matching (FEM), to efficiently resolve the contention in a 3-stage Clos-network photonic switch. Using extended frames to aggregate cells from different incoming lines, the extended frame relaxes the stringent arbitration time constraint at the ultrafast port speed achievable in the photonic switch fabric. We also evaluate and analyze system performances, including throughout and packet delay, under various traffic conditions. At the expanse of a moderate internal speedup of 1.5, throughput close to 100% under various traffic conditions can be achieved in a 3-stage Clos-network switch without expansion.

Original languageEnglish (US)
Pages (from-to)1293-1298
Number of pages6
JournalIEEE International Conference on Communications
StatePublished - 2003
Event2003 International Conference on Communications (ICC 2003) - Anchorage, AK, United States
Duration: May 11 2003May 15 2003

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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