Ives, DJ;
Bayvel, P;
Savory, SJ;
(2014)
Physical layer transmitter and routing optimization to maximize the traffic throughput of a nonlinear optical mesh network.
In:
2014 International Conference on Optical Network Design and Modeling.
(pp. 168 - 173).
IEEE: Stockholm, Sweden.
Preview |
Text
Ives_ONDM2014_P1.pdf Download (340kB) | Preview |
Abstract
This paper investigates the physical layer optimization as a means of improving the utilization of limited network resources. A transparent optical network operating in the nonlinear transmission regime using coherent optical technology is considered. A physical layer model is described that allows the transmission signal quality to be included in the optimization process. Initially a fixed power, route-adapted modulation format approach is taken using integer linear programming to solve the static route allocation problem. It is shown that for the 14-node, 21-link NSF mesh network adaptation of the modulation formats leads to increases in data throughput of 17%. Optimization of the individual transmitter launch powers and spectral channel allocation results in a SNR margin of 2.3 dB, which is used to further increase the overall network traffic throughput exceeding the fixed PM-QPSK modulation format by as much as 50%. Compared to other work this paper highlights that increased gains in network throughput can be achieved if nonlinear interference is included in the routing and spectral assignment algorithm and individual transmitter spectral assignment and launch power is optimized to minimize nonlinear interference.
Type: | Proceedings paper |
---|---|
Title: | Physical layer transmitter and routing optimization to maximize the traffic throughput of a nonlinear optical mesh network |
Event: | 2014 International Conference on Optical Network Design and Modeling |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?... |
Additional information: | Copyright © IFIP 2014. |
Keywords: | Interference, Modulation, Optical transmitters, Optimization, Routing, Signal to noise ratio, Throughput |
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/1443324 |
Archive Staff Only
View Item |