An OFDMA-based wireless body area network using frequency pre-calibration

Hsiao Han Ma*, Jui An Yu, Tsan Wen Chen, Chien Ying Yu, Chen-Yi Lee

*Corresponding author for this work

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

5 Scopus citations

Abstract

A rotator and synthesizer driven (RSD) frequency pre-calibration technique is proposed in this paper for the wireless body area network applications. To overcome the large carrier frequency offset (CFO) and sampling clock offset (SCO) due to a low-cost and low-precision reference clock, the CFO and SCO are estimated from the system downlink process. These estimated CFO and SCO values are provided to a rotator and a synthesizer for signal pre-processing. This RSD concept is evaluated in the proposed WiBoC OFDMA system. The tolerated CFO and SCO ranges are extended to 2.5x of existing wireless systems. This system is designed and simulated in a 90nm technology with 77.5 μW computation power overhead.

Original languageEnglish
Title of host publication2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT
Pages192-195
Number of pages4
DOIs
StatePublished - 5 Sep 2008
Event2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT - Hsinchu, Taiwan
Duration: 23 Apr 200825 Apr 2008

Publication series

Name2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT

Conference

Conference2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT
CountryTaiwan
CityHsinchu
Period23/04/0825/04/08

Keywords

  • CFO
  • OFDMA
  • SCO
  • WBAN

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    Ma, H. H., Yu, J. A., Chen, T. W., Yu, C. Y., & Lee, C-Y. (2008). An OFDMA-based wireless body area network using frequency pre-calibration. In 2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT (pp. 192-195). [4542445] (2008 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT). https://doi.org/10.1109/VDAT.2008.4542445