Optimal OFDM pulse and lattice design for doubly dispersive channels

Author

Beaver, Scott ; Strohmer, Thomas

Author_Institution

Dept. of Math., California Univ., Davis, CA, USA

Volume

2

fYear

2001

fDate

4-7 Nov. 2001

Firstpage

1763

Abstract

We introduce a general framework for OFDM pulse shape design and demonstrate how to obtain a pulse optimally matched to given channel properties. Furthermore, standard OFDM systems are associated with a rectangular grid in the time-frequency plane, which is not optimal for pulse-shaping OFDM systems for doubly dispersive channels. We introduce lattice OFDM systems which are OFDM systems using general lattices in the time-frequency plane.

Keywords

OFDM modulation; adjacent channel interference; dispersive channels; fading channels; intersymbol interference; multipath channels; optimisation; pulse shaping; ICI; ISI; channel properties; doubly dispersive channels; interchannel interference; intersymbol interference; multipath fading; optimal OFDM lattice design; optimal OFDM pulse shape design; orthogonal frequency division multiplexing; rectangular grid; time-frequency plane; Dispersion; Filters; Fourier transforms; Intersymbol interference; Lattices; Mathematics; OFDM; Pulse shaping methods; Shape; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7147-X

Type

conf

DOI

10.1109/ACSSC.2001.987787

Filename

987787