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

Wilhelmsson, Leif; Diaz, Isael LU ; Olsson, Thomas and Öwall, Viktor LU (2011) WCNC 2011 In IEEE Wireless Communications and Networking Conference (WCNC) p.1646-1651
Abstract
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
OFDM, SNR estimation, Signal to Noise Ratio, Sign-Bit
in
IEEE Wireless Communications and Networking Conference (WCNC)
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
WCNC 2011
external identifiers
  • WOS:000297160200282
  • Scopus:79959299422
ISBN
978-1-61284-254-7
project
Radiosystem: Multibase (EU, VÖ/OE)
language
English
LU publication?
yes
id
5686e242-b4ca-4b63-9b6a-ded269b3a1bd (old id 1890467)
date added to LUP
2011-04-13 15:57:33
date last changed
2016-10-13 04:43:28
@misc{5686e242-b4ca-4b63-9b6a-ded269b3a1bd,
  abstract     = {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.},
  author       = {Wilhelmsson, Leif and Diaz, Isael and Olsson, Thomas and Öwall, Viktor},
  isbn         = {978-1-61284-254-7},
  keyword      = {OFDM,SNR estimation,Signal to Noise Ratio,Sign-Bit},
  language     = {eng},
  pages        = {1646--1651},
  publisher    = {ARRAY(0x84f0818)},
  series       = {IEEE Wireless Communications and Networking Conference (WCNC)},
  title        = {Analysis of a novel low complex SNR estimation technique for OFDM systems},
  year         = {2011},
}