Subcarrier-Index Modulation for OFDM-based PLC Systems

Aymen Omri, Javier Hernandez Fernandez, Roberto Di Pietro

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we investigate and evaluate the performances of a subcarrier-index modulation (SIM) technique within an orthogonal frequency division multiplexing (OFDM)-based narrow-band (NB)-power line communication (PLC) system. The SIM technique has been proposed and used mainly in wireless communications to enhance energy and spectral efficiencies. To evaluate the advantages of this technique in PLC, Monte Carlo simulations were performed using field measurements of PLC noise and channel frequency response (CFR). The results show significant advantages in terms of improving the overall system energy and spectral efficiencies, especially for single-level modulation. For instance, when using the SIM-OFDM technique, with a binary phase-shift keying (BPSK) modulation, an energy gain of 66.66% and a bit gain of 50%, with respect to the standard modulation, can be observed.
Original languageEnglish (US)
Title of host publication2023 IEEE Symposium on Computers and Communications (ISCC)
StatePublished - Jul 9 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-08-31
Acknowledgements: This publication is supported by Iberdrola S.A. as part of its innovation department research studies. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of Iberdrola Group. Dr. Roberto Di Pietro produced part of his contribution while he was with HBKU-CSE.


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