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The design of physical and logical topologies for wide-area WDM optical networks
Dissertation (MEng)--University of Pretoria, 2005.
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University of Pretoria
2013
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| _version_ | 1867613605290049536 |
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| access_status_str | Open Access |
| author2 | Leuschner, F.W. (Friedrich Wilhelm) |
| author_browse | Leuschner, F.W. (Friedrich Wilhelm) |
| author_facet | Leuschner, F.W. (Friedrich Wilhelm) |
| collection | Thesis |
| dc_rights_str_mv | © 2003, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng)--University of Pretoria, 2005. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/23541 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:38:48.199Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/23541 The design of physical and logical topologies for wide-area WDM optical networks Leuschner, F.W. (Friedrich Wilhelm) albert.gazendam@eng.up.ac.za Gazendam, Albert Dirk Modified gravity model Traffic grooming Node weighting Economic activity Network management Network reliability Multi-level network model Hub node Ward linkage Intra/inter-cluster traffic ratio Clustering Design methodology Wavelength division multiplexing Wide-area optical network UCTD Dissertation (MEng)--University of Pretoria, 2005. The objective of this dissertation is to investigate the factors that influence the design of wide-area wavelength division multiplexing (WDM) optical networks. Wide-area networks are presented as communication networks capable of transporting voice and data communication over large geographical areas. These networks typically span a whole country, region or even continent.The rapid development and maturation of WDM technology over the last decade have been well-received commercially and warrants the development of skills in the field of optical network design.The fundamental purpose of all communication networks and technologies is to satisfy the demand of end-users through the provisioning of capacity over shared and limited physical infrastructure. Consideration of the business aspects related to communications traffic and the grooming thereof are crucial to developing an understanding of customer requirements in terms of the selection and quality of services and applications. Extensive communication networks require complex management techniques that aim to ensure high levels of reliability and revenue generation.An integrated methodology is presented for the design of wide-area WDM optical networks. The methodology harnesses physical, logical, and virtual topologies together with routing and channel assignment (RCA) and clustering processes to enhance objectivity of the design process. A novel approach, based on statistical clustering using the Ward linkage as similarity metric, is introduced for solving the problem of determining the number and positions of the backbone nodes of a wide-area network, otherwise defined as the top level hub nodes of the multi-level network model. The influence of the geographic distribution of network traffic, and the intra/inter-cluster traffic ratios are taken into consideration through utilisation of modified gravity models and novel network node weighting. Electrical, Electronic and Computer Engineering unrestricted 2013-09-06T15:33:21Z 2004-04-07 2013-09-06T15:33:21Z 2003-12-15 2005-04-07 2004-03-29 Dissertation Gazendam, A 2003, The design of physical and logical topologies for wide-area WDM optical networks, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23541 > http://hdl.handle.net/2263/23541 http://upetd.up.ac.za/thesis/available/etd-03292004-181733/ © 2003, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Modified gravity model Traffic grooming Node weighting Economic activity Network management Network reliability Multi-level network model Hub node Ward linkage Intra/inter-cluster traffic ratio Clustering Design methodology Wavelength division multiplexing Wide-area optical network UCTD The design of physical and logical topologies for wide-area WDM optical networks |
| title | The design of physical and logical topologies for wide-area WDM optical networks |
| title_full | The design of physical and logical topologies for wide-area WDM optical networks |
| title_fullStr | The design of physical and logical topologies for wide-area WDM optical networks |
| title_full_unstemmed | The design of physical and logical topologies for wide-area WDM optical networks |
| title_short | The design of physical and logical topologies for wide-area WDM optical networks |
| title_sort | design of physical and logical topologies for wide area wdm optical networks |
| topic | Modified gravity model Traffic grooming Node weighting Economic activity Network management Network reliability Multi-level network model Hub node Ward linkage Intra/inter-cluster traffic ratio Clustering Design methodology Wavelength division multiplexing Wide-area optical network UCTD |
| url | http://hdl.handle.net/2263/23541 http://upetd.up.ac.za/thesis/available/etd-03292004-181733/ |