Hasnawi, Luai E.
(2017)
Modeling all-optical space/time switching fabrics with frame integrity.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
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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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| 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: |
22 Apr 2024 19:06 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/30431 |
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