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

Författare:
Publiceringsår: 2011
Språk: Engelska
Sidor: 1646-1651
Publikation/Tidskrift/Serie: IEEE Wireless Communications and Networking Conference (WCNC)
Dokumenttyp: Konferensbidrag
Förlag: IEEE

Sammanfattning

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.

Disputation

Nyckelord

  • Technology and Engineering
  • OFDM
  • SNR estimation
  • Signal to Noise Ratio
  • Sign-Bit

Övriga

WCNC 2011
2011-03-30
Cancun
  • European Union
Published
  • Radiosystem: Multibase (EU, VÖ/OE)
Yes
  • Digital ASIC
  • Elektronikkonstruktion
  • ISBN: 978-1-61284-254-7

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