TY - GEN
T1 - Virtual-topology adaptation for mixed-line-rate optical WDM networks under dynamic traffic
AU - Din, Der Rong
AU - Chou, Chih Wei
PY - 2014/9/25
Y1 - 2014/9/25
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84908191916&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84908191916&partnerID=8YFLogxK
U2 - 10.1109/ICCCN.2014.6911832
DO - 10.1109/ICCCN.2014.6911832
M3 - Conference contribution
AN - SCOPUS:84908191916
T3 - Proceedings - International Conference on Computer Communications and Networks, ICCCN
BT - 2014 23rd International Conference on Computer Communication and Networks, ICCCN Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 23rd International Conference on Computer Communication and Networks, ICCCN 2014
Y2 - 4 August 2014 through 7 August 2014
ER -