Coded Pulse-Amplitude-Modulation for Intensity- Modulated Optical Communications

Conference: SCC 2017 - 11th International ITG Conference on Systems, Communications and Coding
02/06/2017 - 02/09/2017 at Hamburg, Germany

Proceedings: ITG-Fb. 268: SCC 2017

Pages: 6Language: englishTyp: PDF

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Authors:
Wu, Zifeng; Lankl, Berthold (Institute for Communications Engineering, University of the Federal Armed Forces Munich, 85577 Neubiberg, Germany)

Abstract:
In this paper, we study the optimization of M-ary pulse-amplitude modulation (PAM) in the context of a coded modulation scheme for intensity-modulated optical communications. Building on previous approaches in literature, we propose to employ q-ary codes, in particular q-ary Polar codes, to achieve simplified mapping and a high degree of flexibility at low to moderate complexity. We focus on information-theoretic aspects and verify the performance of our coded modulation scheme using numerical simulations.