OSA's Digital Library

Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 6 — Jun. 1, 2012
  • pp: 490–502

PTES: A New Packet Transmission Technique in Bufferless Slotted OPS Networks

Akbar Ghaffarpour Rahbar  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 6, pp. 490-502 (2012)
http://dx.doi.org/10.1364/JOCN.4.000490


View Full Text Article

Enhanced HTML    Acrobat PDF (1086 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Optical packet contention is the major problem in optical packet switching (OPS) networks. In this paper, a software-based contention reduction scheme is proposed for all-optical multi-fiber slotted OPS networks, called packet transmission based on the scheduling of empty time-slots (PTES), suitable for overlaid star topology used in a metropolitan area with heterogeneous distances. In the scheduling procedure (performed in a distributed manner by each edge node of a star network) within a frame interval, some time-slots are scheduled as empty time-slots and the remaining time-slots are scheduled as non-empty. Then, an edge node must avoid sending its traffic in empty time-slots. Instead, non-empty time-slots can be used for traffic transmission. With respect to this scheduling, the variance of the number of non-empty time-slots that carry traffic from all edge nodes is minimized in the core node at each time-slot, thus reducing the traffic loss. Mathematical formulas are also provided to compute the traffic loss and delay under PTES. Performance evaluation results illustrate that PTES can reduce the number of collision events and traffic loss, especially at light and moderate traffic loads.

© 2012 OSA

OCIS Codes
(060.4259) Fiber optics and optical communications : Networks, packet-switched
(060.4263) Fiber optics and optical communications : Networks, star

ToC Category:
Research Papers

History
Original Manuscript: July 19, 2011
Revised Manuscript: April 4, 2012
Manuscript Accepted: April 23, 2012
Published: May 21, 2012

Citation
Akbar Ghaffarpour Rahbar, "PTES: A New Packet Transmission Technique in Bufferless Slotted OPS Networks," J. Opt. Commun. Netw. 4, 490-502 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-6-490

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited