Considerations on the Use of Digital Signal Processing in Future Optical Access Networks
Journal article, 2019

In this invited paper, we address the impacts of the rise of signal processing for increased capacity per wavelength and better receiver sensitivities in next generation optical access networks. We start by recalling the main channel limitations of currently deployed intensity modulated, directly detected passive optical networks. Then, with the intention of providing a benchmarking of signal processing approaches used in communication systems other than optical access, we provide a historic perspective on how digital signal processing emerged in copper access systems and we evaluate powerful techniques envisaged for future mobile generation in both air interface and radio access networks. We also assess signal processing in the light of multi-vendor interoperability by providing insights on burst mode operation and the needed protocol and monitoring procedures. Interoperability with regard to optical transceivers is also considered. Last but not least, we evaluate power consumption of digital signal processing and forward error correction solutions used in disruptive, coherent transmission approaches.


Luiz Anet Neto

Jochen Maes

Per Larsson-Edefors

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers), Electronics Systems

Junichi Nakagawa

Kiyoshi Onohara

Stephen J. Trowbridge

Journal of Lightwave Technology

0733-8724 (ISSN)

Energy-efficient optical fibre communication

Knut and Alice Wallenberg Foundation, 2014-07-01 -- 2019-06-30.

Areas of Advance

Information and Communication Technology

Driving Forces

Sustainable development

Subject Categories

Communication Systems

Embedded Systems



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