Commercial optical networks, overlay networks, and services

Doverspike, Robert; Magill, Peter

doi:10.1016/b978-0-12-374172-1.00013-8

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…𝒩 : Switch nodes ℒ : Directed single-fiber links ℒ in n : Directed links terminating at node n ℒ out n : Directed links originating at node n 𝒮 : Active source-destination (s-d) pairs, where s[0] / s [1] is the source/destination node of s-d pair s…”

Section: • Network Parameter Setsmentioning

confidence: 99%

“…The traffic flow may result in different routes at the source node such that the summation of all traffic flows originating from a node s[0] is equal to the total traffic demand. Similarly, the total traffic flow terminating at a node s [1] , which may result from more than one route, is also equal to the total traffic demand. Finally, the traffic flow entering at an intermediate switch node n is equal to the traffic flow leaving the same node n .…”

Section: Subject Tomentioning

confidence: 99%

“…Optical networks based on wavelength division multiplexing (WDM) technology with fast switching, wavelength tuning, and control plane integration provide cost-efficient solutions [ 1,2 ] and high data rate services [3][4][5]. The emergence of high data rate newly developed Internet and mobile applications, including video communication, peer-to-peer and distributed computing, and healthcare applications are also generating high-bandwidth but variable short-lived traffic demands [ 6 ].…”

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Joint routing, link capacity dimensioning, and switch port optimization for dynamic traffic in optical networks

Khan

Khattak

et al. 2021

ETRI Journal

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This paper considers a challenging problem: to simultaneously optimize the cost and the quality of service in opaque wavelength division multiplexing (WDM) networks. An optimization problem is proposed that takes the information including network topology, traffic between end nodes, and the target level of congestion at each link/ node in WDM networks. The outputs of this problem include routing, link channel capacities, and the optimum number of switch ports locally added/dropped at all switch nodes. The total network cost is reduced to maintain a minimum congestion level on all links, which provides an efficient trade-off solution for the network design problem. The optimal information is utilized for dynamic traffic in WDM networks, which is shown to achieve the desired performance with the guaranteed quality of service in different networks. It was found that for an average link blocking probability equal to 0.015, the proposed model achieves a net channel gain in terms of wavelength channels ( 𝛾 w ) equal to 35.72 % , 39.09 % , and 36.93 % compared to shortest path first routing and 𝛾 w equal to 29.41 % , 37.35 % , and 27.47 % compared to alternate routing in three different networks.

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Section: • Network Parameter Setsmentioning

confidence: 99%

Section: Subject Tomentioning

confidence: 99%

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