Ozan, W;
Grammenos, R;
Darwazeh, I;
(2022)
Experimental Validation of Zero Padding in SEFDM Systems Using Over-the-Air Transmission.
In:
2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP).
(pp. pp. 631-636).
IEEE: Porto, Portugal.
Preview |
PDF
Experimental Validation of Zero Padding in SEFDM.pdf - Accepted Version Download (4MB) | Preview |
Abstract
Non-orthogonal spectrally efficient frequency division multiplexing (SEFDM) saves bandwidth by compressing the frequency spacing between the subcarriers. This is at the cost of introducing inter-carrier interference (ICI) between the subcarriers. This self-created ICI compounded by the signal degradation caused during wireless propagation in multipath environments, complicates the task of channel estimation and equalisation. Recent studies suggest that combining zero padding (ZP) with SEFDM signals can simplify the challenge of channel estimation and equalisation in the frequency-domain. In this work, we validate experimentally the new ZP scheme through over-the-air transmission of radio frequency (RF) signals. Experimental results prove that using ZP in SEFDM enhances the channel estimation and equalisation accuracy, in comparison to conventional cyclic prefix (CP)-SEFDM. In addition, it is shown that ZP-SEFDM offers robustness against timing offsets.
| Type: | Proceedings paper |
|---|---|
| Title: | Experimental Validation of Zero Padding in SEFDM Systems Using Over-the-Air Transmission |
| Event: | 2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) |
| Dates: | 20 Jul 2022 - 22 Jul 2022 |
| ISBN-13: | 9781665410441 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/CSNDSP54353.2022.9907982 |
| Publisher version: | https://doi.org/10.1109/CSNDSP54353.2022.9907982 |
| 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: | Wireless communication, RF signals, Measurement uncertainty, Channel estimation, Interference, Robustness, Timing |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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 |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10161370 |
Archive Staff Only
 |
View Item |
