Virtual-topology adaptation for mixed-line-rate optical WDM networks under dynamic traffic

Der Rong Din, Chih Wei Chou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In the mixed-line-rate (MLR) wavelength-division multiplexing (WDM) networks, each wavelength of fiber can provide different bandwidths (in 10/40/100 Gbps) by using different modulation types. Since the MLR-WDM technique is becoming the key and a cost-efficiency technique for the network upgrading, the problem for supporting virtual topology reconfiguration (VTR) becomes a very important issue. In this paper, the VTR problem for a MLR-WDM network is studied under dynamic traffic demand. By monitoring traffic of the lightpaths, a heuristic adaptation method is proposed to follow the changes in traffic without a priori knowledge of the future traffic pattern. The proposed can achieve the load balances by either adjusting (increasingly or decreasingly), adding or deleting one or more lightpaths at a time. Simulation experiments employing the adaptation algorithm on realistic network scenarios reveal interesting effects of the various system parameters. Specifically, we find that this method adapts very well to the changes in the offered traffic on MLR-WDM networks.

Original languageEnglish
Title of host publication2014 23rd International Conference on Computer Communication and Networks, ICCCN Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479935727
DOIs
Publication statusPublished - 2014 Sep 25
Event2014 23rd International Conference on Computer Communication and Networks, ICCCN 2014 - Shanghai, China
Duration: 2014 Aug 42014 Aug 7

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
ISSN (Print)1095-2055

Other

Other2014 23rd International Conference on Computer Communication and Networks, ICCCN 2014
CountryChina
CityShanghai
Period14-08-0414-08-07

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Din, D. R., & Chou, C. W. (2014). Virtual-topology adaptation for mixed-line-rate optical WDM networks under dynamic traffic. In 2014 23rd International Conference on Computer Communication and Networks, ICCCN Proceedings [6911832] (Proceedings - International Conference on Computer Communications and Networks, ICCCN). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCCN.2014.6911832