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

Der Rong Din, Chih Wei Chou

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題2014 23rd International Conference on Computer Communication and Networks, ICCCN Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781479935727
DOIs
出版狀態Published - 2014 九月 25
事件2014 23rd International Conference on Computer Communication and Networks, ICCCN 2014 - Shanghai, China
持續時間: 2014 八月 42014 八月 7

出版系列

名字Proceedings - International Conference on Computer Communications and Networks, ICCCN
ISSN(列印)1095-2055

Other

Other2014 23rd International Conference on Computer Communication and Networks, ICCCN 2014
國家China
城市Shanghai
期間14-08-0414-08-07

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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