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Analysis of a novel low complex SNR estimation technique for OFDM systems

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Author

Summary, in English

Signal-to-noise ratio (SNR) estimation is commonly used in wireless receivers to enhance the performance in different ways. In this paper a novel low complexity SNR estimator for OFDM is proposed. The estimator might be implemented using floating point representation or by using only the sign-bit, and can if desired be effectively implemented by reconfiguring the standard correlator used for time- and frequency estimation. Closed form expressions for the SNR estimate are derived for both the floating point implementation and the sign-bit implementation, and compared to simulation results both for an additive white Gaussian noise (AWGN) channel and for a frequency selective channel showing the feasibility of the proposed algorithm.

Publishing year

2011

Language

English

Pages

1646-1651

Publication/Series

IEEE Wireless Communications and Networking Conference (WCNC)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • OFDM
  • SNR estimation
  • Signal to Noise Ratio
  • Sign-Bit

Conference name

WCNC 2011

Conference date

2011-03-30

Status

Published

Project

  • Radiosystem: Multibase (EU, VÖ/OE)

Research group

  • Digital ASIC
  • Elektronikkonstruktion

ISBN/ISSN/Other

  • ISBN: 978-1-61284-254-7