Non-uniform waveband switching in multi-granular optical networks

Authors:
Yang Wang;Xiaojun Cao
Affiliations:
Georgia State University, Atlanta, Georgia;Georgia State University, Atlanta, Georgia
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 3
Cited 1

Design of logical topologies for wavelength-routed optical networks

IEEE Journal on Selected Areas in Communications
A study of waveband switching with multilayer multigranular optical cross-connects

IEEE Journal on Selected Areas in Communications
A scalable design of multigranularity optical cross-connects for the next-generation optical Internet

IEEE Journal on Selected Areas in Communications

Optimal Wavebanding in WDM Ring Networks

IEEE/ACM Transactions on Networking (TON)

Quantified Score

Hi-index	0.00

Visualization

Abstract

Waveband switching (WBS) has recently attracted attention from a wide range of industry and academia groups for its practical and hierarchial concepts in handling massive lightpaths with reduced control complexity and nodal size. Previous studies demonstrate that non-uniform waveband switching, in which wavebands contain various number of wavelengths, can provide more flexibility for wavelength grouping thus achieving more port saving. In this work, for the first time, we model the non-uniform waveband switching problem in a mesh topology with static off-line traffic, by using Integer Liner Programming (ILP) formulations. As an optimal approach, the proposed ILP model takes routing, wavelength grouping, traffic demands and non-uniform band settings into consideration. In the cases that the optimal ILP becomes intractable, we develop an efficient heuristic called simulated non-uniform waveband assignment (SNWS). Our simulations and analysis show that the proposed heuristic SNWS can achieve smaller port count than the existing near-optimal uniform waveband switching scheme.