Liu, X;
Darwazeh, I;
Zein, N;
Sasaki, E;
(2021)
Spectrally Efficient FDM System with Probabilistic Shaping.
In:
2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall).
IEEE: Norman, OK, USA.
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Abstract
This work proposes and explores the use of probabilistic shaping for the non-orthogonal multicarrier spectrally efficient frequency division multiplexing (SEFDM) system. The system design considers the reverse concatenation architecture which cascades the constant composition distribution matching (CCDM) algorithm together with soft-decision forward error correction (SD-FEC)-LDPC code for the probabilistic shaping scheme. The non-orthogonal signalling is implemented by discrete Fourier transform (DFT)-based SEFDM modulation with matched filtering demodulation and advanced interference cancellation detection. The high achievable spectral efficiency, low computation complexity and reliability make SEFDM a good candidate for multicarrier signalling for beyond 5G communications. By adding extra shaping gain and flexibility of rate adaptation, the combination of two capacity-achieving techniques provides significant insight of further performance improvement. In this paper, we investigate the performance of the proposed probabilistically shaped-SEFDM (PS-SEFDM) system with regular QAM constellations. The presented results of the proposed system show less required power and bandwidth saving compared to OFDM when achieving the same error performance and same spectral efficiency.
| Type: | Proceedings paper |
|---|---|
| Title: | Spectrally Efficient FDM System with Probabilistic Shaping |
| Event: | 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall) |
| Dates: | 27 Sep 2021 - 30 Sep 2021 |
| ISBN-13: | 9781665413688 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/VTC2021-Fall52928.2021.9625460 |
| Publisher version: | https://doi.org/10.1109/VTC2021-Fall52928.2021.962... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Vehicular and wireless technologies , Interference cancellation, Spectral efficiency, OFDM, Computer architecture, Bandwidth, Probabilistic logic |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10144583 |
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