Abstract
For the mixed-line-rate (MLR) wavelength-division multiplexing (WDM) networks, each wavelength in a fiber can provide different transmitting rates (in 10/40/100 Gbps) by using different modulation formats. Since the MLR-WDM becomes a cost-efficient technique for the network upgrading, the problem of supporting virtual topology reconfiguration (VTR) becomes an important issue. In this paper, the VTR problem is studied for MLR-WDM networks under dynamic traffic demand. By monitoring traffic of the lightpaths, a reconfiguration method is proposed to follow the changes in traffic without a priori knowledge of the future traffic pattern. The proposed algorithm can optimize resource utilization and network traffic performance by either adjusting (increasing or decreasing), adding or deleting one or more lightpaths at a time. Simulations reveal the effects of the various system parameters. Specifically, we find that the proposed method adapts very well to the changes in the offered traffic on MLR-WDM networks.
| Original language | English |
|---|---|
| Pages (from-to) | 290-308 |
| Number of pages | 19 |
| Journal | Photonic Network Communications |
| Volume | 30 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 Oct 24 |
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All Science Journal Classification (ASJC) codes
- Software
- Atomic and Molecular Physics, and Optics
- Hardware and Architecture
- Computer Networks and Communications
- Electrical and Electronic Engineering
Cite this
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Virtual topology reconfiguration for mixed-line-rate optical WDM networks under dynamic traffic. / Din, Der Rong; Chou, Chih Wei.
In: Photonic Network Communications, Vol. 30, No. 2, 24.10.2015, p. 290-308.Research output: Contribution to journal › Article
TY - JOUR
T1 - Virtual topology reconfiguration for mixed-line-rate optical WDM networks under dynamic traffic
AU - Din, Der Rong
AU - Chou, Chih Wei
PY - 2015/10/24
Y1 - 2015/10/24
N2 - For the mixed-line-rate (MLR) wavelength-division multiplexing (WDM) networks, each wavelength in a fiber can provide different transmitting rates (in 10/40/100 Gbps) by using different modulation formats. Since the MLR-WDM becomes a cost-efficient technique for the network upgrading, the problem of supporting virtual topology reconfiguration (VTR) becomes an important issue. In this paper, the VTR problem is studied for MLR-WDM networks under dynamic traffic demand. By monitoring traffic of the lightpaths, a reconfiguration method is proposed to follow the changes in traffic without a priori knowledge of the future traffic pattern. The proposed algorithm can optimize resource utilization and network traffic performance by either adjusting (increasing or decreasing), adding or deleting one or more lightpaths at a time. Simulations reveal the effects of the various system parameters. Specifically, we find that the proposed method adapts very well to the changes in the offered traffic on MLR-WDM networks.
AB - For the mixed-line-rate (MLR) wavelength-division multiplexing (WDM) networks, each wavelength in a fiber can provide different transmitting rates (in 10/40/100 Gbps) by using different modulation formats. Since the MLR-WDM becomes a cost-efficient technique for the network upgrading, the problem of supporting virtual topology reconfiguration (VTR) becomes an important issue. In this paper, the VTR problem is studied for MLR-WDM networks under dynamic traffic demand. By monitoring traffic of the lightpaths, a reconfiguration method is proposed to follow the changes in traffic without a priori knowledge of the future traffic pattern. The proposed algorithm can optimize resource utilization and network traffic performance by either adjusting (increasing or decreasing), adding or deleting one or more lightpaths at a time. Simulations reveal the effects of the various system parameters. Specifically, we find that the proposed method adapts very well to the changes in the offered traffic on MLR-WDM networks.
UR - http://www.scopus.com/inward/record.url?scp=84942198927&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84942198927&partnerID=8YFLogxK
U2 - 10.1007/s11107-015-0517-z
DO - 10.1007/s11107-015-0517-z
M3 - Article
AN - SCOPUS:84942198927
VL - 30
SP - 290
EP - 308
JO - Photonic Network Communications
JF - Photonic Network Communications
SN - 1387-974X
IS - 2
ER -