On the design of farrow interpolator for OFDM receivers with asynchronous IF sampling

Yih-Min  Chen

4th International ICST Conference on Communications and Networking in China

Research Article

On the design of farrow interpolator for OFDM receivers with asynchronous IF sampling

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CHINACOM.2009.5339878,
    author={Yih-Min  Chen},
    title={On the design of farrow interpolator for OFDM receivers with asynchronous IF sampling},
    proceedings={4th International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2009},
    month={11},
    keywords={Farrow Interpolator OFDM Digital Front-End and Asynchronous IF Sampling},
    doi={10.1109/CHINACOM.2009.5339878}
}

Yih-Min Chen
Year: 2009
On the design of farrow interpolator for OFDM receivers with asynchronous IF sampling
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2009.5339878

Yih-Min Chen¹^,*

1: Department of Communication Engineering National Central University, Chung-Li, Taiwan

*Contact email: ymchen@ce.ncu.edu.tw

Abstract

In an OFDM receiver with traditional superheterodyne radio-frequency (RF) front-end, the analog IF output signal is sampled at an IF sampling rate adhered to bandpass sampling theorem. A digital front-end which incorporates spectral shifting and sampling rate conversion (SRC) is then required to convert the digital IF signal to a complex baseband signal at a baseband sampling specified by the OFDM system. The SRC ratio must be arbitrary ratio when the IF sampling rate is asynchronous to the time base of the transmitter. In this paper, we discuss the design of Farrow Interpolator for arbitrary ratio SRC in the digital front-end specifically for OFDM receivers.

Keywords: Farrow Interpolator OFDM Digital Front-End and Asynchronous IF Sampling

Published: 2009-11-20
Publisher: IEEE

: http://dx.doi.org/10.1109/CHINACOM.2009.5339878