Improving harmonic rejection for spectrum sensing using crosscorrelation

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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18 Downloads (Pure)

Abstract

Harmonic downmixing may cause a spectrum sensing device to erroneously flag parts of the spectrum as occupied. Receivers employing harmonic rejection (HR) rarely obtain more than 60 dB of HR, which may not be enough for spectrum sensing for dynamic spectrum access. We improve HR by employing two RF-receivers, integrated in a single 65nm CMOS IC, and using a small offset in their LO-frequencies. The offset is corrected in the digital baseband, after which the final receiver outputs are crosscorrelated. Our measurements show that the HR can be significantly improved without calibration or time penalty, even for high initial HR, but that the improvement is limited by crosstalk between the receivers.
Original languageEnglish
Title of host publication38th European Solid-State Circuit Conference, ESSCIRC 2012
Place of PublicationPiscataway
PublisherIEEE
Pages361-364
Number of pages4
ISBN (Print)978-1-4673-2212-6
DOIs
Publication statusPublished - 2012
Event38th European Solid-State Circuit Conference, ESSCIRC 2012 - Bordeaux, France
Duration: 17 Sep 201221 Sep 2012
Conference number: 38

Conference

Conference38th European Solid-State Circuit Conference, ESSCIRC 2012
Abbreviated titleESSCIRC
CountryFrance
CityBordeaux
Period17/09/1221/09/12

Fingerprint

Crosstalk
Calibration

Keywords

  • EWI-22457
  • IR-83399
  • METIS-296135

Cite this

Oude Alink, M.S. ; Kokkeler, Andre B.J. ; Klumperink, Eric A.M. ; Ru, Z. ; Cheng, W. ; Nauta, Bram. / Improving harmonic rejection for spectrum sensing using crosscorrelation. 38th European Solid-State Circuit Conference, ESSCIRC 2012. Piscataway : IEEE, 2012. pp. 361-364
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title = "Improving harmonic rejection for spectrum sensing using crosscorrelation",
abstract = "Harmonic downmixing may cause a spectrum sensing device to erroneously flag parts of the spectrum as occupied. Receivers employing harmonic rejection (HR) rarely obtain more than 60 dB of HR, which may not be enough for spectrum sensing for dynamic spectrum access. We improve HR by employing two RF-receivers, integrated in a single 65nm CMOS IC, and using a small offset in their LO-frequencies. The offset is corrected in the digital baseband, after which the final receiver outputs are crosscorrelated. Our measurements show that the HR can be significantly improved without calibration or time penalty, even for high initial HR, but that the improvement is limited by crosstalk between the receivers.",
keywords = "EWI-22457, IR-83399, METIS-296135",
author = "{Oude Alink}, M.S. and Kokkeler, {Andre B.J.} and Klumperink, {Eric A.M.} and Z. Ru and W. Cheng and Bram Nauta",
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doi = "10.1109/ESSCIRC.2012.6341329",
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booktitle = "38th European Solid-State Circuit Conference, ESSCIRC 2012",
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}

Oude Alink, MS, Kokkeler, ABJ, Klumperink, EAM, Ru, Z, Cheng, W & Nauta, B 2012, Improving harmonic rejection for spectrum sensing using crosscorrelation. in 38th European Solid-State Circuit Conference, ESSCIRC 2012. IEEE, Piscataway, pp. 361-364, 38th European Solid-State Circuit Conference, ESSCIRC 2012, Bordeaux, France, 17/09/12. https://doi.org/10.1109/ESSCIRC.2012.6341329

Improving harmonic rejection for spectrum sensing using crosscorrelation. / Oude Alink, M.S.; Kokkeler, Andre B.J.; Klumperink, Eric A.M.; Ru, Z.; Cheng, W.; Nauta, Bram.

38th European Solid-State Circuit Conference, ESSCIRC 2012. Piscataway : IEEE, 2012. p. 361-364.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Improving harmonic rejection for spectrum sensing using crosscorrelation

AU - Oude Alink, M.S.

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AU - Cheng, W.

AU - Nauta, Bram

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AB - Harmonic downmixing may cause a spectrum sensing device to erroneously flag parts of the spectrum as occupied. Receivers employing harmonic rejection (HR) rarely obtain more than 60 dB of HR, which may not be enough for spectrum sensing for dynamic spectrum access. We improve HR by employing two RF-receivers, integrated in a single 65nm CMOS IC, and using a small offset in their LO-frequencies. The offset is corrected in the digital baseband, after which the final receiver outputs are crosscorrelated. Our measurements show that the HR can be significantly improved without calibration or time penalty, even for high initial HR, but that the improvement is limited by crosstalk between the receivers.

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Oude Alink MS, Kokkeler ABJ, Klumperink EAM, Ru Z, Cheng W, Nauta B. Improving harmonic rejection for spectrum sensing using crosscorrelation. In 38th European Solid-State Circuit Conference, ESSCIRC 2012. Piscataway: IEEE. 2012. p. 361-364 https://doi.org/10.1109/ESSCIRC.2012.6341329