Sampling Time Offset Estimation for IFDMA Uplink Systems

Author

Arkhipov, Alexander ; Schnell, Michael

Author_Institution

German Aerosp. Center, Wessling

fYear

2007

fDate

1-5 July 2007

Firstpage

1

Lastpage

5

Abstract

This article investigates the influence of sampling time offset on the performance of an interleaved frequency-division multiple-access (IFDMA) uplink scheme for mobile radio transmission. It is shown that sampling time offset causes signal-to-noise ratio (SNR) degradation and leads to inter-symbol interference (ISI). In addition, an efficient algorithm is proposed which is capable to estimate sampling time offset by applying oversampling at the receiver. The proposed algorithm requires only three-times oversampling, does not use any pilot symbols, and is independent from the transmission channel and modulation alphabet.

Keywords

frequency division multiple access; intersymbol interference; mobile radio; modulation; radio links; sampling methods; wireless channels; IFDMA uplink systems; ISI; interleaved frequency-division multiple-access; intersymbol interference; mobile radio transmission; modulation alphabet; sampling time offset estimation; signal-to-noise ratio; transmission channel; Discrete Fourier transforms; Filters; Intersymbol interference; Land mobile radio; Peak to average power ratio; Pulse shaping methods; Radio spectrum management; Radio transmitters; Receivers; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Mobile and Wireless Communications Summit, 2007. 16th IST

Conference_Location

Budapest

Print_ISBN

963-8111-66-6

Electronic_ISBN

963-8111-66-6

Type

conf

DOI

10.1109/ISTMWC.2007.4299053

Filename

4299053