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Performance analysis of sign-based pre-FFT synchronization in OFDM systems

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Author

Summary, in English

This paper treats the feasibility to use only the sign bit of the in-phase and quadrature components when estimating time and frequency in OFDM systems. Using only the sign bit is shown to result in a frequency dependent bias, which can be easily compensated. The approach is evaluated for LTE and

DVB-H, where the estimation is performed using the cyclic prefix, and for WLAN 802.11g, where the estimation is done using the short training field (STF). The performance is compared to a floating point implementation, and it is also compared to what is believed to be reasonable requirements for initial time and frequency estimation.

Publishing year

2010

Language

English

Publication/Series

IEEE Vehicular Technology Conference

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • OFDM
  • DVB-H
  • Synchronization
  • LTE
  • WLAN

Conference name

IEEE Vehicular Technology Conference (VTC Spring), 2010

Conference date

2010-05-16 - 2010-05-19

Conference place

Taipei, Taiwan

Status

Published

Project

  • Radiosystem: Multibase (EU, VÖ/OE)

Research group

  • Digital ASIC
  • Elektronikkonstruktion

ISBN/ISSN/Other

  • ISSN: 1550-2252
  • ISBN: 978-1-4244-2519-8