Title :
Comparison of CP-OFDM and OFDM/OQAM in Doubly Dispersive Channels
Author :
Du, Jinfeng ; Signell, Svante
Author_Institution :
KTH - R. Inst. of Technol., Stockholm
Abstract :
In this paper we compare the performance of cyclic prefix based OFDM (CP-OFDM) system and OFDM/offset QAM (OFDM/OQAM) system in doubly dispersive channels, by investigating the signal reconstruction perfectness, time and frequency dispersion robustness, and sensitivity to frequency offset. Both analysis and simulation results show that various parameter adaptations can be made with respect to the channel state information to improve the system performance.
Keywords :
OFDM modulation; dispersive channels; quadrature amplitude modulation; signal reconstruction; channel state information; cyclic prefix-based OFDM; doubly dispersive channels; frequency dispersion robustness; frequency offset; offset QAM system; signal reconstruction; time dispersion robustness; Analytical models; Channel state information; Dispersion; Information analysis; OFDM; Performance analysis; Quadrature amplitude modulation; Robustness; Signal reconstruction; System performance;
Conference_Titel :
Future Generation Communication and Networking (FGCN 2007)
Conference_Location :
Jeju
Print_ISBN :
0-7695-3048-6
DOI :
10.1109/FGCN.2007.89
