Time-frequency tiling and the BER performance of QAM-FBMC systems with short filters

Didier Le Ruyet (1) , Rostom Zakaria (1) , Iandra Galdino (1) , Marcello de Campos (2)

1 CEDRIC - LAETITIA - CEDRIC. Traitement du signal et architectures électroniques
2 UFRJ - Universidade Federal do Rio de Janeiro [Brasil] = Federal University of Rio de Janeiro [Brazil] = Université fédérale de Rio de Janeiro [Brésil]

The intrinsic interference observed at the receiver in QAM-FBMC (Quadrature Amplitude Modulation Filterbank Multicarrier) systems can be a source of problems when combined with MIMO techniques (multiple-input multiple-output), In an attempt to overcome the intrinsic interference of the QAM-FBMC system, in this paper, we propose to change the time spacing and frequency spacing of the traditional system. In this sense, we evaluate the applicability of a quincunx lattice structure to the QAM-FBMC systems that use short filters, which means an overlapping factor of one. We evaluate the traditional system performance, with rectangular lattice, through the simulations of bit error rate (BER) when using short filters found in the literature and compare to the performance when using the quincunx lattice.

Mots clés: Time-frequency analysis; Quadrature amplitude modulation; System performance; Bit error rate; Lattices; Prototypes; Wireless communication

Domaines: Traitement du signal et de l'image [eess.SP]

Didier Le Ruyet, Rostom Zakaria, Iandra Galdino, Marcello de Campos. Time-frequency tiling and the BER performance of QAM-FBMC systems with short filters. 2021 17th International Symposium on Wireless Communication Systems (ISWCS), Sep 2021, Berlin, France. pp.1-6, ⟨10.1109/ISWCS49558.2021.9562136⟩. ⟨hal-03541816⟩