Mesh-based Survivable Transport Networks: Options and Strategies for Optical, MPLS, SONET and ATM Networking
Cost-effective heuristics for planning GMPLS-based transport networks
Optical Switching and Networking
Generalized multiprotocol label switching: an overview of routing and management enhancements
IEEE Communications Magazine
Hybrid hierarchical optical networks
IEEE Communications Magazine
Design of logical topologies for wavelength-routed optical networks
IEEE Journal on Selected Areas in Communications
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
Hi-index | 0.00 |
The multi-granular switching concept defined in Generalized Multiprotocol Label Switching (GMPLS) is expected to be a future-proof solution for mitigating the Optical Crossconnet scalability problems associated with the skyrocketing growth of traffic in optical transport networks. In this paper, we address the problem of planning the GMPLS-based (or multi-granular) transport network with color (or label) conversion and signal regeneration capabilities. The objective of the problem is to minimize the total weighted port count in the transport network. The novelty of this problem lies in the incorporation of the following for the first time: (1) considering all traffic granularities defined in GMPLS; (2) allowing wavelength, waveband, and fiber conversions; (3) considering the optical-reach limitation of optical signals; and (4) customizing the optical reach of all-optical paths. Due to the computational complexity of the problem, we propose various efficient heuristics that are capable of solving large-sized problems in a reasonable amount of time. In order to achieve the best possible solution to the planning problem, a comprehensive evaluation of different heuristic variations through illustrative examples and simulations is conducted. The results also provide valuable insights into many issues that can contribute to further research and development in this area.