Lozada, A;
Calderon, F;
Kasaneva, JN;
Borquez-Paredes, D;
Olivares, R;
Beghelli, A;
Jara, N;
... Saavedra, G; + view all
(2021)
Impact of Amplification and Regeneration Schemes on the Blocking Performance and Energy Consumption of Wide-Area Elastic Optical Networks.
IEEE Access
, 9
pp. 134355-134368.
10.1109/ACCESS.2021.3115998.
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Abstract
This paper studies the physical layer’s impact on the blocking probability and energy consumption of wide-area dynamic elastic optical networks (EONs). For this purpose, we consider five network configurations, each named with a network configuration identifier (NCI) from 1 to 5, for which the Routing, Modulation Level, and Spectrum Assignment (RMLSA) problem is solved. NCI 1–4 are transparent configurations based on all-EDFA, hybrid Raman/EDFA amplifiers (with different Raman gain ratio ΓR ), all-DFRA, and alternating span configuration (EDFA and DFRA). NCI 5 is a translucent configuration based on all-EDFA and 3R regenerators. We model the physical layer for every network configuration to determine the maximum achievable reach of optical signals. Employing simulation, we calculate the blocking probability and the energy consumption of the different network configurations. In terms of blocking, our results show that NCI 2 and 3 offer the lowest blocking probability, with at least 1 and 3 orders of magnitude of difference with respect to NCI 1 and 5 at high and low traffic loads, respectively. In terms of energy consumption, the best performing alternatives are the ones with the worst blocking (NCI 1), while NCI 3 exhibits the highest energy consumption with NCI 2ΓR=0.75 following closely. This situation highlights a clear trade-off between blocking performance and energy cost that must be considered when designing a dynamic EON. Thus, we identify NCI 2 using ΓR=0.25 as a promising alternative to reduce the blocking probability significantly in wide-area dynamic EONs without a prohibitive increase in energy consumption.
| Type: | Article |
|---|---|
| Title: | Impact of Amplification and Regeneration Schemes on the Blocking Performance and Energy Consumption of Wide-Area Elastic Optical Networks |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ACCESS.2021.3115998 |
| Publisher version: | https://doi.org/10.1109/ACCESS.2021.3115998 |
| Language: | English |
| Additional information: | CCBY - IEEE is not the copyright holder of this material. Please follow the instructions via https://creativecommons.org/licenses/by/4.0/ to obtain full-text articles and stipulations in the API documentation. |
| Keywords: | Science & Technology, Technology, Computer Science, Information Systems, Engineering, Electrical & Electronic, Telecommunications, Computer Science, Engineering, Repeaters, Erbium-doped fiber amplifiers, Energy consumption, Optical signal processing, Optical polarization, Gain, Optical pumping, Elastic optical networks, resource assignment, translucent configuration, transparent configuration, NONLINEAR INTERFERENCE, SPECTRUM ASSIGNMENT, GN-MODEL, TRANSMISSION, MODULATION, STRATEGIES, ALLOCATION, PLACEMENT, LEVEL, POWER |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10137678 |
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