On the impact of phase noise and frequency offsets in block transmission CDMA schemes

Author

Dinis, Rui ; Lam, Chan ; Falconer, David

Author_Institution

CAPS-IST, Tech. Univ. Lisbon, Portugal

fYear

2004

fDate

20-22 Sept. 2004

Firstpage

95

Lastpage

99

Abstract

Block transmission techniques, with appropriate cyclic extension and employing FDE techniques (frequency-domain equalization), are appropriate for high data rate transmission over severe time-dispersive channels. However, these techniques may require accurate carrier synchronization and very stable oscillators, especially when employed in the uplink transmission of CDMA-based systems (code division multiple access) with large blocks. In this paper, we study the impact of phase noise and frequency offsets on the uplink of CDMA-based block transmission systems.

Keywords

code division multiple access; dispersive channels; equalisers; frequency-domain analysis; phase noise; radio links; synchronisation; block transmission CDMA scheme; carrier synchronization; code division multiple access; frequency offset; frequency-domain equalization; phase noise; time-dispersive channel; Base stations; Frequency estimation; Frequency synchronization; Local oscillators; Multiaccess communication; Multicarrier code division multiple access; OFDM modulation; Phase noise; Time division multiple access; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems, 2004, 1st International Symposium on

Print_ISBN

0-7803-8472-5

Type

conf

DOI

10.1109/ISWCS.2004.1407216

Filename

1407216