Abstract
Alternative homing architectures can lead to significant cost reductions. These reductions are quantified using linear programming under a multi-layer consideration. In this study we focus on savings with respect to network equipment capital expenditures (CAPEX) achieved by transitioning to different homing architectures in an IP over optical data unit (ODU) setting. The impact of traffic demand is examined for different reference networks. In all conducted case studies we find that network equipment costs follow an approximately linear relationship with the traffic demand. Additionally, case study results assuming up to an aggressive 50% cost decrease in IP layer equipment, quantify the impact of variations in the cost of network elements.
Similar content being viewed by others
References
Pioro, M., & Medhi, D. (2004). Routing, flow, and capacity design in communication and computer networks. Morgan Kaufmann: San Mateo.
Demeester, P., et al. (1999). Resilience in multilayer networks. IEEE Communications Magazine, 37(8), 70–76.
Medhi, D. (1994). A unified approach to network survivability for teletraffic networks: models, algorithms and analysis. IEEE Transactions on Communications, 42, 534–548.
Palkopoulou, E., Schupke, D. A., & Bauschert, T. (2009). Qualitative evaluation of homing architectures in multi-layer networks and availability analysis. In 13th international conference on optical networking design and modeling (ONDM), Braunschweig, Germany, February, 2009.
Palkopoulou, E., Schupke, D. A., & Bauschert, T. (2009). CAPEX and availability tradeoffs of homing architectures in multi-layer networks. In 7th international workshop on design of reliable communication networks (DRCN), Washington, DC, USA, October 25–28, 2009.
Palkopoulou, E., Schupke, D. A., & Bauschert, T. (2010). Homing architectures in multi-layer networks: quantifying the effect of ODU switching. In National fiber optic engineers conference (NFOEC), San Diego, California, USA, March 21–25, 2010.
Palkopoulou, E., Schupke, D. A., & Bauschert, T. (2010). CAPEX savings of homing architectures considering OTN equipment. In 14th international telecommunications network strategy and planning symposium (NETWORKS), Warsaw, Poland, September 27–30, 2010.
Doverspike, R. (1991). Algorithms for multiplex bundling in a telecommunications network. Operations Research, 39, 925–944.
Labourdette, J.-F., Bouillet, E., & Chaudhuri, S. (2003). Role of optical network and spare router strategy in resilient IP backbone architecture. In Fourth international workshop on design of reliable communication networks (DRCN), Banff, Alberta, Canada, 19–22 October, 2003.
Chaudhuri, S., & Goldstein, E. (2000). On the value of optical-layer reconfigurability in IP-over-WDM lightwave networks, IEEE Photonics Technology Letters, 12(8).
Huelsermann, R., et al. (2007). Quantitative evaluation of architectures for multilayer transport networks. In 6th international workshop on the design of reliable communication networks (DRCN), La Rochelle, France, October, 2007.
Sengupta, S., Kumar, V., & Saha, D. (2003). Switched optical backbone for cost-effective scalable core IP networks. IEEE Communications Magazine, 41(6).
Huelsermann, R., et al. (2008). Cost modeling and evaluation of capital expenditures in optical multilayer networks. The Journal of Optical Networking, 7(9), 814–833.
A Schupke, D., & Gruber, C. G. (2007). Availability improvement by dynamic path provisioning in dual-homing multilayer networks. In Sixth international workshop on design of reliable communication networks (DRCN), La Rochelle, France, October, 2007.
Simple Network Description Library, SNDLIB. http://sndlib.zip.de.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Palkopoulou, E., Schupke, D.A. & Bauschert, T. Quantifying CAPEX savings of homing architectures enabled by future optical network equipment. Telecommun Syst 52, 1123–1129 (2013). https://doi.org/10.1007/s11235-011-9618-x
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11235-011-9618-x