In OFDM receivers, an accurate signal-to-noise ratio (SNR) estimation is desirable for all sorts of operations involved in high-performance baseband demodulation. In this work, conventional SNR estimation techniques are investigated. Next, a blind SNR estimation scheme for the phase-shift keying (PSK) signals based on the coherence function is proposed. The proposed method is non-data-aided (NDA) and hence bandwidth-efficient. Simulations confirm that the proposed method has the best performance from moderate to high SNRs both in AWGN and dispersive channels; however, the proposed method has worse performance when SNRs are low.
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Wen-Long CHIN, Sau-Gee CHEN, "Blind SNR Estimation with Coherent Function for OFDM Systems" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 11, pp. 3753-3756, November 2008, doi: 10.1093/ietcom/e91-b.11.3753.
Abstract: In OFDM receivers, an accurate signal-to-noise ratio (SNR) estimation is desirable for all sorts of operations involved in high-performance baseband demodulation. In this work, conventional SNR estimation techniques are investigated. Next, a blind SNR estimation scheme for the phase-shift keying (PSK) signals based on the coherence function is proposed. The proposed method is non-data-aided (NDA) and hence bandwidth-efficient. Simulations confirm that the proposed method has the best performance from moderate to high SNRs both in AWGN and dispersive channels; however, the proposed method has worse performance when SNRs are low.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.11.3753/_p
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@ARTICLE{e91-b_11_3753,
author={Wen-Long CHIN, Sau-Gee CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={Blind SNR Estimation with Coherent Function for OFDM Systems},
year={2008},
volume={E91-B},
number={11},
pages={3753-3756},
abstract={In OFDM receivers, an accurate signal-to-noise ratio (SNR) estimation is desirable for all sorts of operations involved in high-performance baseband demodulation. In this work, conventional SNR estimation techniques are investigated. Next, a blind SNR estimation scheme for the phase-shift keying (PSK) signals based on the coherence function is proposed. The proposed method is non-data-aided (NDA) and hence bandwidth-efficient. Simulations confirm that the proposed method has the best performance from moderate to high SNRs both in AWGN and dispersive channels; however, the proposed method has worse performance when SNRs are low.},
keywords={},
doi={10.1093/ietcom/e91-b.11.3753},
ISSN={1745-1345},
month={November},}
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TY - JOUR
TI - Blind SNR Estimation with Coherent Function for OFDM Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 3753
EP - 3756
AU - Wen-Long CHIN
AU - Sau-Gee CHEN
PY - 2008
DO - 10.1093/ietcom/e91-b.11.3753
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2008
AB - In OFDM receivers, an accurate signal-to-noise ratio (SNR) estimation is desirable for all sorts of operations involved in high-performance baseband demodulation. In this work, conventional SNR estimation techniques are investigated. Next, a blind SNR estimation scheme for the phase-shift keying (PSK) signals based on the coherence function is proposed. The proposed method is non-data-aided (NDA) and hence bandwidth-efficient. Simulations confirm that the proposed method has the best performance from moderate to high SNRs both in AWGN and dispersive channels; however, the proposed method has worse performance when SNRs are low.
ER -