Energy Efficient Routing and Spectrum Assignment With Regenerator Placement in Elastic Optical Networks
- 23 April 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 32 (10), 2019-2027
- https://doi.org/10.1109/jlt.2014.2319575
Abstract
In this paper, we present a dynamic energy efficient routing and spectrum assignment algorithm with regenerator placement (RP) capability for elastic optical networks. In this algorithm, a virtual graph is considered for a given network topology graph, whereby the cost functions of virtual graph is computed according to the energy consumption of the corresponding links and intermediates routers. Furthermore, the arrived connection request is served by finding the most energy-efficient path among the possible candidate paths. Then, the quality of transmission (QoT) of the selected path is evaluated in terms of bit error rate. If the estimated QoT is higher than a predetermined threshold, the designated path is assigned to the incoming request, otherwise, the RP algorithm is utilized to place a regenerator at the most energy-efficient position. In addition, the demanded transmission rate and required QoT are fulfilled by assessing different modulation formats and selecting appropriate modulation format in terms of power consumption and blocking probability (BP). We evaluate the proposed algorithms through extensive numerical simulations. The results of simulations reveal that the proposed algorithms have better performance than other existing schemes in terms of network total energy consumption and acceptable BP.Funding Information
- Iran National Science Foundation
This publication has 25 references indexed in Scilit:
- A Quality-of-Transmission Aware Dynamic Routing and Spectrum Assignment Scheme for Future Elastic Optical NetworksJournal of Lightwave Technology, 2013
- Experimental Demonstration of Adaptive Combinational QoT Degradation Restoration in Elastic Optical NetworksJournal of Lightwave Technology, 2012
- Energy-Efficient Translucent Optical Transport Networks With Mixed Regenerator PlacementJournal of Lightwave Technology, 2012
- Dynamic Routing and Spectrum Assignment in Spectrum-Flexible Transparent Optical NetworksJournal of Optical Communications and Networking, 2012
- On the effect of regenerator placement on spectrum usage in translucent Elastic Optical NetworksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- Impairment-aware routing in translucent spectrum-sliced elastic optical path networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- Multiflow optical transponder for efficient multilayer optical networkingIEEE Communications Magazine, 2012
- Mixed Placement of 1R/2R/3R Regenerators in Translucent Optical Networks to Achieve Green and Cost-Effective DesignIEEE Communications Letters, 2011
- All-Optical Regeneration for Ultra-Long Fiber Links and its Prospects for Future Applications with New Modulation FormatsPublished by Optica Publishing Group ,2009
- Optical Networking: Past, Present, and FutureJournal of Lightwave Technology, 2008