Title :
Doppler Frequency and Noise Insensitive Sampling Frequency Offset Estimation Method for DVB-T/H Systems
Author :
Won, Kyung Hoon ; Han, Jung Su ; Choi, Hyung-Jin ; Koo, Bonyoung
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon
Abstract :
A precise estimation of SFO (Sampling Frequency Offset) is an important issue in OFDM (Orthogonal Frequency Division Multiplexing) system. However, the conventional method causes serious performance degradation of SFO estimation in low SNR (Signal to Noise Ratio) or large Doppler frequency environment. Therefore, in this paper, we propose a SFO estimation method which can achieve stable operation in low SNR and large Doppler frequency environment. The proposals for SFO estimation /compensation are mainly based on DVB (Digital Video Broadcasting) system, and we verified that the proposed method has a good performance and stable operation through extensive simulation.
Keywords :
Doppler effect; OFDM modulation; digital video broadcasting; frequency estimation; interference suppression; sampling methods; DVB-T-H system; Doppler frequency estimation method; OFDM system; digital video broadcasting; noise insensitive SFO estimation method; orthogonal frequency division multiplexing; sampling frequency offset; Degradation; Digital video broadcasting; Frequency estimation; Information technology; OFDM; Sampling methods; Satellite broadcasting; Scattering; Signal to noise ratio; Working environment noise;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073510
