Channel adaptive pulse shaping for OQAM-OFDM systems

Author

Fuhrwerk, Martin ; Peissig, Jurgen ; Schellmann, Malte

Author_Institution

Inst. of Commun. Technol., Leibniz Univ. Hannover, Hannover, Germany

fYear

2014

fDate

1-5 Sept. 2014

Firstpage

181

Lastpage

185

Abstract

Theory predicts a gain in transmission performance, when adapting pulse shapes of Offset Quadrature Amplitude Modulation (OQAM) Orthogonal Frequency Division Multiplexing (OFDM) systems to delay and Doppler spread in doubly-dispersive channels. Here we investigate the quantitative gains in reconstruction quality and bit error rate (BER) with respect to subcarrier spacing and channel properties. It is shown that it is possible to reduce the uncoded BER by a factor of more than two and the coded BER by a factor of at least four, utilizing only two different pulse shapes. The simulation results show that channel adaptive pulse shaping for OQAM-OFDM systems is a promising concept for future mobile communication systems.

Keywords

OFDM modulation; error statistics; pulse shaping; quadrature amplitude modulation; BER; Doppler spread; OQAM-OFDM systems; bit error rate; channel adaptive pulse shaping; doubly-dispersive channels; mobile communication systems; offset quadrature amplitude modulation orthogonal frequency division multiplexing systems; reconstruction quality; subcarrier spacing; Bit error rate; Delays; Doppler effect; Interference; OFDM; Prototypes; Shape; FBMC; OQAM-OFDM; Prototype filter; Pulse shaping;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference (EUSIPCO), 2014 Proceedings of the 22nd European

Conference_Location

Lisbon

Type

conf

Filename

6952015