A Study of Dynamic Waveband Switching in Multi-granular OpticalNetworks

Yang Wang and Xiaojun Cao

Your library or personal account may give you access

• Abstract
• Full Article

• Figures (12)
• Tables (3)
• Equations (8)
• References (27)
• Cited By(22)
• Back to Top

Abstract

The basic principle of waveband switching (WBS) is to group multiple wavelengthstogether as a band or fiber and switch the group using a single port wheneverpossible. To support waveband grouping in WBS networks, multi-granular opticalcross-connects (MG-OXCs) are introduced to switch the traffic at the fiber, band, andwavelength layers. One important goal in WBS networks is to minimize the number ofports at the MG-OXCs. For WBS networks with dynamic or on-line traffic, both the portconsumption and call blocking probability should be considered during the process ofaccommodating unpredictable traffic demands with limited resources. Call blocking canbe caused by port insufficiency as well as wavelength shortage in WBS networks withdynamic traffic. Our study in this work starts with an analysis of a reconfigurableMG-OXC architecture and various cases of port consumption on this architecture. Wethen analyze the lower/upper bounds for the design parameter of the reconfigurableMG-OXC architecture. Based on the insights obtained from the analysis, we propose anew algorithm, namely, weighted graph-based waveband assignment (WGB), which employsan auxiliary weighted graph technique to make efficient dynamic routing and wavebandassignment. The proposed algorithm is simulated in WBS networks with fully dynamic orincremental traffic patterns. Our results show that the proposed scheme can satisfyup to 40% more lightpath requests than the existing scheme, maximum overlap ratio(MOR), before a certain blocking ratio is observed in the network. Our study alsoshows that with limited resources, WBS can obtain port savings by limiting the designparameter while achieving an allowable blocking probability.

©2011 Optical Society of America

Framework for waveband switching in multigranular optical networks: part II--wavelength/waveband conversion and survivability [Invited]

Xiaojun Cao, Vishal Anand, and Chunming Qiao
J. Opt. Netw.6(1) 48-62 (2007)

Dynamic control, routing, and resource assignment in multi-granular optical node topologies combining wavelength, waveband, and spatial switching for 6G transport networks [Invited]

Varsha Lohani, Raul Muñoz, Ramon Casellas, Lluis Gifre Renom, Carlos Manso, Ricard Vilalta, and Ricardo Martínez
J. Opt. Commun. Netw.17(1) A59-A70 (2025)

On the Conditions That Justify Requiring Dynamic Reconfigurability in WDM–TDMA Optical Access Networks

David Garcia-Roger, Iñigo Artundo, and Beatriz Ortega
J. Opt. Commun. Netw.3(4) 259-271 (2011)

Dynamic Preemption Call Admission Control Scheme Based on Markov Decision Process in Traffic Groomed Optical Networks

Chuan-Ching Sue, Yuan-Bin Hsu, and Pey-Jiuan Ho
J. Opt. Commun. Netw.3(4) 300-311 (2011)

Analysis of Blocking Probability for First-Fit Wavelength Assignment in Transmission-Impaired Optical Networks

Jun He, Maïté Brandt-Pearce, and Suresh Subramaniam
J. Opt. Commun. Netw.3(5) 411-425 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription