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Signal-to-Noise Ratio Estimation for FFT-Based System
Bo-Kyung LEE Mi-Jeong KIM Hyoung-Kyu SONG
IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
SNR estimation, fading channel, FFT-based system,
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In this letter, we propose the SNR estimator for multipath fading channels. We employ the least squares estimator for estimating the channel and estimate the SNR using the estimated noise variance. The SNR estimation can be used to adapt the demodulation algorithm to enhance its performance, as well as to provide the channel quality information. Simulation results show the performance of SNR estimator.