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Modeling all-optical space/time switching fabrics with frame integrity

Hasnawi, Luai E. (2017) Modeling all-optical space/time switching fabrics with frame integrity. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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All-optical networks have attracted significant attention because they promise to provide significant advantages in throughput, bandwidth, scalability, reliability, security, and energy efficiency. These six features appealed to optical transport-network operators in the past and, currently, to cloud-computing and data-center providers. But, the absence of optical processors and optical Random Access Memory (RAM) has forced the optical network designers to use optical-to-electrical conversion on the input side of every node so the node can process packet headers and store data during the switching operation. And, at every node’s output side, all data must be converted from its electronic form back to the optical domain before being transmitted over fiber to the next node. This practice reduces all six of those advantages the network would have if it were all-optical. So, to achieve a network that is all-optical end-to-end, many all-optical switching fabrics have been proposed.

Many of these proposed switching fabrics lack a control algorithm to operate them. Two control algorithms are proposed in this dissertation for two previously-proposed switching fabrics. The first control algorithm operates a timeslot interchanger and the second operates a space/time switching fabric - where both these photonic systems are characterized by active Feed-Forward Fiber Delay Line (FF-FDL) and the frame-integrity constraint. In each case, the proposed algorithm provides non-blocking control of its corresponding switching fabric. In addition, this dissertation derives the output signal power from each switching fabric in terms of crosstalk and insertion loss.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Hasnawi, Luai E.leh31@pitt.eduLEH310000-0002-2255-2901
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairThompson, Richardrthompso@pitt.eduRTHOMPSO
Committee MemberTipper, Daviddtipper@sis.pitt.eduDTIPPER
Committee MemberKarimi, Hassan A.hkarimi@pitt.eduHKARIMI
Committee MemberPalanisamy, Balajibpalan@sis.pitt.eduBPALAN
Committee MemberMelhem, Ramimelhem@cs.pitt.eduMELHEM
Date: 6 January 2017
Date Type: Publication
Defense Date: 25 August 2016
Approval Date: 6 January 2017
Submission Date: 25 October 2016
Access Restriction: 1 year -- Restrict access to University of Pittsburgh for a period of 1 year.
Number of Pages: 174
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Telecommunications
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: Optical networks photonic communications photonic switching all-optical networks OTDM frame integrity optical time switching optical space/time switchig
Date Deposited: 06 Jan 2017 22:06
Last Modified: 06 Jan 2018 06:15

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