Title: Precoded GFDM system for self-interference mitigation

Authors: Mohsen Farhang; Hossein Khaleghi Bizaki

Addresses: Malek-Ashtar University of Technology, Lavizan, Tehran, Iran ' Malek-Ashtar University of Technology, Lavizan, Tehran, Iran

Abstract: Generalised frequency division multiplexing (GFDM) is a multicarrier transmission scheme that offers a flexible framework to address diverse requirements of fifth generation of cellular networks. Compared to orthogonal frequency division multiplexing (OFDM), the application of pulse shaping in GFDM can control the out of band (OOB) radiation and enables relaxed synchronisation requirements. However, the sub-carriers in GFDM are no longer orthogonal and there is inherent interference. Since this interference is known at the transmitter, it can be mitigated by means of precoding techniques. In this paper, Tomlinson-Harashima precoding (THP) scheme is applied to GFDM transceiver and its performances is compared to previous methods in terms of bit error rate (BER) and peak to average power ratio (PAPR). The results show that the proposed precoder outperforms previous methods in both BER and PAPR.

Keywords: generalised frequency division multiplexing; GFDM; precoding technique; non-orthogonal waveform; self-interference.

DOI: 10.1504/IJSCC.2019.102743

International Journal of Systems, Control and Communications, 2019 Vol.10 No.4, pp.329 - 337

Accepted: 16 Jan 2019
Published online: 02 Oct 2019 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article