Authors: Farhad Arpanaei, Mahdi Ranjbar Zefreh, Yanchao Jiang, Pierluigi Poggiolini, Kimia Ghodsifar, Hamzeh Beyranvand, Carlos Natalino, Paolo Monti, Antonio Napoli, José M. Rivas-Moscoso, Óscar González de Dios, Juan P. Fernández-Palacios, Octavia A. Dobre, José Alberto Hernández, David Larrabeiti.
Journal: IEEE Journal on Selected Areas in Communications, Vol. 43, No. 5, pp. 1840-1855, May 2025. DOI: 10.1109/JSAC.2025.3543528
Summary
In this article we address the challenge of designing next-generation multi-band elastic optical networks (MB-EONs). The key contributions include:
- Introducing two hyper-accelerated power optimisation strategies, namely flat launch power (FLP) and flat received power (FRP), to expedite power allocation in optical spans while keeping service quality stable.
- Performing wavelength-dependent modelling of fibre impairments (loss, dispersion, nonlinearities, Raman scattering) across extended bands (beyond L+C) and evaluating their effect on QoT (Quality of Transmission).
- Conducting network-wide studies on large-scale topologies showing how FRP improves minimum GSNR and yields throughput increases from ~12 % up to ~75% depending on network size.
- Providing cross-layer design insight that couples physical-layer power control with upper-layer routing/spectrum assignment in MB-EONs for energy-efficient and resilient transport.
Why It Matters
This work helps push optical transport networks toward future-proof infrastructure by:
- Enhancing spectral efficiency and throughput in multi-band optical systems.
- Reducing operational power consumption via intelligent power optimisation.
- Improving network resilience and QoT awareness, especially important when moving into new bands/S-band and beyond.
- Offering design guidelines for network operators and researchers working on 6G/optical backhaul/transport networks.