Blind SNR Estimation with Coherent Function for OFDM Systems

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概要

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• 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.

著者

• CHIN Wen-Long

  Department of Electronics Engineering and Institute of Electronics, National Chiao Tung University

• CHEN Sau-Gee

  Department of Electronics Engineering and Institute of Electronics, National Chiao Tung University

関連論文

• Blind SNR Estimation with Coherent Function for OFDM Systems
• Blind SNR Estimation with Coherent Function for OFDM Systems
• A Low-Complexity Minimum-Interference Symbol Time Estimation for OFDM Systems
• Blind Minimum Interference Symbol Synchronization for OFDM Systems in Long ISI Channels
• Time-Domain Processing of Frequency-Domain Data and Its Application

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