A new approach for routing and wavelength assignment for permanent and reliable wavelength paths in wide all-optical WDM networks

Zyane, Abdellah; Pierre, Samuel; Guennoun, Zouhair

doi:10.1007/s11107-007-0091-0

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…For examp le, in Fig. 2, the wavelength λ1 on the lin k (8,9) may be reserved only for the connection from node 6 to node 10 (it has priority over the connection between nodes 8 and 9); thus, a connection request from node 8 to node 9 cannot be set up on λ1 on link (8,9). In th is case the alternate route must be found for connection between nodes 6 and 10.…”

Section: Wavelength Assignmentmentioning

confidence: 99%

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Multihop Routing and Wavelength Assignment Algorithm for Optical WDM Networks

Tintor¹,

Radunovic²

2012

IJNC

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We propose a new routing and wavelength assignment scheme that improves the blocking probability of WDM networks and offers a very good utilizat ion of the networks resources. This heuristic results in high quality of service, prioritization of the LAN networks and lower installat ion costs compared with the traditional RWA algorith ms applied in WDM networks. It is based on the distributed Dijkstra sparse placement routing algorithm, first-fit wavelength reservation and traffic mu ltip lexing. We apply load balancing and a sparse electronic switch placement algorithm during the process of finding the optimal lightpath in order to reduce the number of dropped lightpath sessions to zero, min imize the number of opaque nodes and maximize the utilization of the network.

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Section: Wavelength Assignmentmentioning

confidence: 99%

“…Both steps must succeed for a lightpath to be established. This involves routing and signaling to reserve a wavelength on each link along the selected path [8]. A lightpath connection request may be blocked on the path because there is no wavelength available on any of the links along the selected path.…”

Section: Introductionmentioning

confidence: 99%

Multihop Routing and Wavelength Assignment Algorithm for Optical WDM Networks

Tintor¹,

Radunovic²

2012

IJNC

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“…In order to increase the switching rate and the bandwidth utilization rate, some experts present all optical routing [1][2][3].…”

mentioning

confidence: 99%

A novel architecture of optical code label processing in parallel designed for all optical routing system

Wang

Miao

2011

Photon Netw Commun

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A novel architecture of optical code label routing is designed based on optical code division multiplexing techniques, which performs the data packet forwarding and processing in parallel with a way of making the label and payload encoded and decoded separately. It uses optical polarity characteristics to realize the separation of the label and payload, employs fiber Bragg grating to encode/decode the label and payload so as to process them in parallel, and makes the forwarding and routing process realized in the optical domain. In the core router, the separation of the label and payload guarantees that the switch processing only includes the short label code recognition, without processing the payload. The payload recognition is carried out in the edge router. Thus, the router can simplify the processing of encoding and decoding in the core router, accelerating the switching, and increase the throughput greatly. Moreover, the novel routing scheme not only supports the varying of data packets, transparent transmission, fine granularity switching, and so on, but also is suitable for the aggregation of data service. It is attractive for the future development of all optical routing.

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