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Efficient design and operation of tr...

Yang, Xi.

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Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks./
作者:	Yang, Xi.
面頁冊數:	163 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4124.
Contained By:	Dissertation Abstracts International65-08B.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3142110
ISBN:	0496891243

Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks.
Yang, Xi.

Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks. - 163 p.

Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4124.

Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2004.

Wavelength-division multiplexing (WDM technology allows the transport in parallel of several high-speed data channels in a single optical fiber. The huge bandwidth capacity in an optical fiber forms the basis for increasing interest in WDM optical networks from both industry and research communities. This dissertation is focused on efficient design and operation of a wavelength-routed WDM network that will be technically feasible in the near future. Our research shows that the widely favored all-optical or transparent optical network would be difficult to be practically deployed in the near future due to severe physical impairments and wavelength contention. In contrast to the transparent network, an opaque network, which uses optical-electrical-optical (OEO) processing on every wavelength at every node, is prohibitively expensive. We study an alternate network architecture called translucent network and develop efficient algorithms to place OEO regenerators sparsely in the translucent optical network to minimize the network cost. Also, optical-layer constraints are incorporated into impairments-aware wavelength routing algorithms to establish translucent lightpaths with the objective of minimizing network resource consumption.

ISBN: 0496891243Subjects--Topical Terms:

626642
Computer Science.

Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks.
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245 1 0 $a Efficient design and operation of translucent wavelength division multiplexing (WDM) optical networks.
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500 $a Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4124.
500 $a Supervisor: Byravamurthy Ramamurthy.
502 $a Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2004.
520 $a Wavelength-division multiplexing (WDM technology allows the transport in parallel of several high-speed data channels in a single optical fiber. The huge bandwidth capacity in an optical fiber forms the basis for increasing interest in WDM optical networks from both industry and research communities. This dissertation is focused on efficient design and operation of a wavelength-routed WDM network that will be technically feasible in the near future. Our research shows that the widely favored all-optical or transparent optical network would be difficult to be practically deployed in the near future due to severe physical impairments and wavelength contention. In contrast to the transparent network, an opaque network, which uses optical-electrical-optical (OEO) processing on every wavelength at every node, is prohibitively expensive. We study an alternate network architecture called translucent network and develop efficient algorithms to place OEO regenerators sparsely in the translucent optical network to minimize the network cost. Also, optical-layer constraints are incorporated into impairments-aware wavelength routing algorithms to establish translucent lightpaths with the objective of minimizing network resource consumption.
520 $a In this dissertation, we are particularly interested in investigating the impact of optical-layer constraints on Internet-scale dynamic routing and virtual topology reconfiguration operations. When the translucent network scales up, the optical-layer constraints add to the huge computational complexity of the wavelength routing and virtual topology reconfiguration problems. We divide the wavelength routing problem into intra-domain and inter-domain routing sub-problems and conquer them separately. We develop a common analytical model to evaluate the benefits and penalties of various optical-layer virtual topology configuration schemes. To protect a translucent WDM optical network against failures, we further address the survivable lightpath provisioning problem under shared-path protection and OEO regeneration. We propose a resource-sharing scheme that supports three kinds of resource-sharing scenarios in a translucent WDM mesh network. We develop several solution approaches to maximize the sharing and thus minimize the total number of OEO regenerators and wavelength-links used, which translates into enormous cost savings.
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