A Reduced Complexity Transmitter for UF-OFDM

Author

Wild, Thorsten ; Schaich, Frank

Author_Institution

Bell Labs., Alcatel-Lucent, Stuttgart, Germany

fYear

2015

fDate

11-14 May 2015

Firstpage

1

Lastpage

6

Abstract

UF-OFDM is a promising 5G waveform candidate, close to CP-OFDM, but with better spectral properties. Efficient receiver implementations exist, which are close to CP-OFDM in terms of complexity. The UF-OFDM multi-carrier modulator, on the other hand, still has no efficient solution in the literature up to now. This paper addresses this problem and presents a novel frequency domain generation method for UF-OFDM, where overlapping subbands are superimposed. Our approach can bring down UF-OFDM multi-carrier modulator complexity almost as low as a factor of 2 above CP-OFDM, with a negligible approximation error. Thus the required efficient transmitter implementation is delivered by this paper´s solution, ready to be used in hardware implementations.

Keywords

5G mobile communication; OFDM modulation; radio transmitters; 5G waveform; UF-OFDM; frequency domain generation method; multicarrier modulator; reduced complexity transmitter; universal filtered OFDM; Approximation methods; Complexity theory; Finite impulse response filters; Frequency-domain analysis; Modulation; Time-domain analysis; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st

Conference_Location

Glasgow

Type

conf

DOI

10.1109/VTCSpring.2015.7145643

Filename

7145643