Frequency domain re-sampler for clock sampling offset in MIMO ODFM systems

Peter J. Voltz, Hui Yuan Teng, I. Tai Lu, Yongwen Yang, Robert L. Olesen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In OFDM systems the oscillators used at the Digital to Analog Converter (DAC) and Analog to Digital Converter (ADC) to derive sampling instants at the transmitter and receiver will never have exactly the same period. Thus sampling instants slowly shift relative to each other. In this paper we investigate the performance of a frequency domain re-sampler for a MIMO OFDM system which was developed for a proposed IEEE 802.11n TGn proposal. We present analysis and simulation to demonstrate that this technique results in negligible performance loss relative to perfect sample timing. In addition, the complexity of the technique is compared to a competing technique based upon a variable digital delay filter (Farrow filter). It is shown that the frequency domain re-sampler results in a lower complexity design. Also memory requirements for the design are causal and very low.

Original languageEnglish (US)
Title of host publication2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Pages538-542
Number of pages5
DOIs
StatePublished - Dec 1 2006
Event2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall - Montreal, QC, Canada
Duration: Sep 25 2006Sep 28 2006

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
CountryCanada
CityMontreal, QC
Period9/25/069/28/06

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Keywords

  • Clock sampling offset
  • MIMO OFDM
  • Performance analysis
  • Synchronization

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Voltz, P. J., Teng, H. Y., Lu, I. T., Yang, Y., & Olesen, R. L. (2006). Frequency domain re-sampler for clock sampling offset in MIMO ODFM systems. In 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall (pp. 538-542). [4109385] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCF.2006.120