Repository logo
 

Interpreting multi-objective reinforcement learning for routing and wavelength assignment in optical networks

Accepted version
Peer-reviewed

Type

Article

Change log

Abstract

jats:pPerformance optimization literature in optical networks predominantly consists of single objective optimization studies while often in practice multiple performance goals are to be met. This study addresses this issue with a generalized reinforcement learning (RL) model for parameter optimization in optical networks in the presence of multiple performance goals. Using this generic model, two multi-objective variants of a classical optimization problem in optical network operation, routing and wavelength assignment (RWA), are derived and solved to near optimality. The allocated route and wavelength for each demand are optimized with respect to the number of accepted services, the number of transmitters, and network availability. The resultant approximated Pareto front provides a set of solutions from which network operators can make decisions based on their preferences for particular objectives. These results contribute to the understanding of the relationships between different network parameters and performance metrics, which would be beneficial in future network design and growth. Moreover, benchmarking results against the state-of-the-art RWA heuristics suggest the applicability of RL in dynamic settings under changing traffic and generalizability for unseen traffic.</jats:p>

Description

Keywords

Optimization, Wavelength assignment, Routing, Throughput, Signal to noise ratio, Reinforcement learning, Physical layer

Journal Title

Journal of Optical Communications and Networking

Conference Name

Journal ISSN

1943-0620
1943-0639

Volume Title

Publisher

Optica Publishing Group
Sponsorship
Engineering and Physical Sciences Research Council (EP/R035342/1)
Relationships
Is supplemented by: