Selecting fibre delay line distributions for travelling buffers in an all-optical packet switched cross-connect

R. Geldenhuys, Y. Liu, N. Calabretta, G.D. Khoe, F.W. Leuschner, H.J.S. Dorren

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)


Based on feasible concepts of all-optical switching and all-optical buffering, this paper considers the implementation of travelling buffers in an all-optical packet switched cross-connect. Because of the fundamental limitations of an input-buffered architecture, an output-buffered architecture is investigated to determine the influencing factors on the performance. We investigate the feasibility of developing an all-optical cross-connect with travelling buffers in terms of the amount of fibre required to obtain an acceptable packet loss ratio in the cross-connect. By simulating a travelling fibre delay line buffer using traffic with self-similar characteristics, it is shown that the traffic load and characteristics influence the buffer performance, as well as the cross-connect size and the selection of the fibre delay line distributions. Furthermore, the internal use of wavelengths to increase the effective buffer size has a significant influence on the total amount of fibre required for buffering, in particular in DWDM systems where hundreds of wavelengths can share a single fibre.
Original languageEnglish
Title of host publicationProceedings CCECE 2003, Montreal, Canada
Place of PublicationMontreal, Canada
Publication statusPublished - 2003
Eventconference; CCECE 2003; 2003-04-04; 2003-04-07 -
Duration: 4 Apr 20037 Apr 2003


Conferenceconference; CCECE 2003; 2003-04-04; 2003-04-07
OtherCCECE 2003


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