Optimal OFDM design for time-frequency dispersive channels

• Published in: IEEE transactions on communications Vol. 51; no. 7; pp. 1111 - 1122
• Main Authors: Strohmer, T., Beaver, S.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2003; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Channels; Communication channels; Design engineering; Dispersion; Dispersions; Doppler effect; Frequency division multiplexing; Interference; Intersymbol interference; Lattices; OFDM; Optimization; Orthogonal Frequency Division Multiplexing; Protection; Pulse shape; Pulse shaping methods; Robustness; Shape; Studies; Time frequency analysis
• ISSN: 0090-6778; 1558-0857
• DOI: 10.1109/TCOMM.2003.814200

Transmission over wireless channels is subject to time dispersion due to multipath propagation and to frequency dispersion due to the Doppler effect. Standard orthogonal frequency-division multiplexing (OFDM) systems, using a guard-time interval or cyclic prefix, combat intersymbol interference (ISI...