Improved Connection Establishment of Dynamic Traffic with Queue in WDM Optical Networks

Petale, Shrinivas; Maurya, Rakesh Kumar; Thangaraj, Jaisingh

doi:10.1007/s11277-018-5663-z

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…Bandwidth demand has been growing tremendously due to the emergent services viz., video conferencing, social networking, multimedia, cloud computing, etc., and this massive growth in the traffic is increasing day by day due to technology advancement. Thus, network operators necessitate a next-generation optical network to meet this unexpectedly increasing traffic demand in a cost-justifiable and flexible manner [1]- [2]. In response to these high traffic demands and distinctive spectrum granularity, elastic optical networks (EONs) have been proposed, with dynamic bandwidth allocation characteristic [3].…”

Section: Introductionmentioning

confidence: 99%

Optimal Spectrum Granularity for Spectrally-efficient Elastic Optical Networks

Ujjwal

2023

Preprint

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In this paper, we compute the optimal slot width which provides a good trade-off between the blocking probability and network cost to attain spectral and cost-efficient solution for the next generation optical networks. Here we have determined the blocking performance by varying the slot width from 50 GHz down to 1.5625 GHz followed by the estimation of the network cost by taking into account various network elements viz., transponder, node equipment’s (OXC, SSS, splitter/combiner) and optical amplifiers. Further, an evaluation of the trade-off between blocking performance and network cost is carried out to get the optimal slot width.

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Section: Introductionmentioning

confidence: 99%

Optimal Spectrum Granularity for Spectrally-efficient Elastic Optical Networks

Ujjwal

2023

Preprint

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“…In WDM network the data is transmitted on many wavelength in an optical fiber. The end users communicate via channels known as lightpaths [2], [3]. The lightpath has to reach the links using the same channel which it traverse, that is without wavelength converters [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Fragmentation aware heuristic algorithm for routing and wavelength assignment in optical networks

Mogannaiah,

Choudhary,

Kenchappa

2023

IJEECS

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Wavelength division multiplexing (WDM) is one of the dominating technologies with high-capacity back bone networks. The cost associated with the high-capacity networks given more importance. The major issue is allocating and managing the available resources. To achieve this most efficient algorithms has to be used. We are considering the routing of lightpath and wavelength assignment problem, called as the routing and wavelength assignment (RWA) problem. The optimization of wavelength fragmentation in the WDM network is very much important in resource utilization. Wavelength fragmentation is one of the most important challenges in the area of the WDM network. Where it leads to some serious issues for the operators, such as the rejection of new requests. We are using integer linear program (ILP), here the problem is based on the node link formation. It is based on the multilayer concept and the original WDM network consists of several layers. We propose an efficient heuristic approach to solve this problem of finding the shortest path and assigning a wavelength without wavelength conversion. The model achieves better performance with fragmentation aware wavelength allocation strategy that minimizes fragmentation.

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