caa a22 4500 445871040 CHVBK 20180317145511.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11107-010-0300-0 doi (NATIONALLICENCE)springer-10.1007/s11107-010-0300-0 Towards the realistic planning of GMPLS-based optical transport networks [Elektronische Daten] [Nabil Naas, H. Mouftah] 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. Springer Science+Business Media, LLC, 2010 Optical reach nationallicence Reach customization nationallicence Multi-granular optical networks nationallicence GMPLS-based transport networks nationallicence RMGPA problem nationallicence Naas Nabil School of Information Technology and Engineering, University of Ottawa, K1N 6N5, Ottawa, ON, Canada aut Mouftah H. School of Information Technology and Engineering, University of Ottawa, K1N 6N5, Ottawa, ON, Canada aut Photonic Network Communications Springer US; http://www.springer-ny.com 21/3(2011-06-01), 288-309 1387-974X 21:3<288 2011 21 11107 https://doi.org/10.1007/s11107-010-0300-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11107-010-0300-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Naas Nabil School of Information Technology and Engineering, University of Ottawa, K1N 6N5, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Mouftah H. School of Information Technology and Engineering, University of Ottawa, K1N 6N5, Ottawa, ON, Canada aut NATIONALLICENCE 773 0- Photonic Network Communications Springer US; http://www.springer-ny.com 21/3(2011-06-01), 288-309 1387-974X 21:3<288 2011 21 11107 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer