標題: Blind SNR Estimation with Coherent Function for OFDM Systems
作者: Chin, Wen-Long
Chen, Sau-Gee
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: OFDM;SNR estimation
公開日期: 1-十一月-2008
摘要: 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.
URI: http://dx.doi.org/10.1093/ietcom/e91-b.11.3753
http://hdl.handle.net/11536/8216
ISSN: 0916-8516
DOI: 10.1093/ietcom/e91-b.11.3753
期刊: IEICE TRANSACTIONS ON COMMUNICATIONS
Volume: E91B
Issue: 11
起始頁: 3753
結束頁: 3756
顯示於類別:期刊論文


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