TY - JOUR
T1 - OFDM synchronization system using wavelet transform for symbol rate detection
AU - Sawada, Masaru
AU - Nguyen, Quang Ngoc
AU - Alhasani, Mohammed Mustafa
AU - Safitri, Cutifa
AU - Sato, Takuro
N1 - Funding Information:
This research was partly funded by Waseda University Grant for Special Research Projects grant number 2019C-174. The study is also partially supported by Fujitsu-Waseda Digital Annealer FWDA Research Project (Joint Research between Waseda University and Fujitsu R&D Lab.) conducting at Fujitsu Co-Creation Research Laboratory at Waseda University.
Publisher Copyright:
© 2019, Universitas Ahmad Dahlan.
PY - 2020
Y1 - 2020
N2 - In radio communications, using wavelet signal analysis to recover the symbol rate timing clock of orthogonal frequency-division multiplexing (OFDM) is a new approach that can tolerate signal distortion from intersymbol interference (ISI) and intercarrier interference of encoding digital data on multiple carrier frequencies. Typically, the reception synchronization with wavelet signal analysis in OFDM can improve the performance over the fourier transform-based OFDM. However, a synchronization procedure that is stable against distortion and noise is essential to diminish the symbol synchronization establishment and operation sampling period. In this paper, we propose an OFDM synchronization system and analyze the impact of the wavelet denoise procedure on the OFDM system, which extracts the symbol rate of the OFDM frame. The evaluation results show that the proposed system can optimize the frequency window size to enable an efficient timing and frequency offset estimation with high and stable performance in terms of bit error rate (BER) and Frame Error Rate (FER) especially when the value of EbN0 (a normalized signal-to-noise ratio SNR measure) is greater than 8 dB, thanks to the wavelet transform.
AB - In radio communications, using wavelet signal analysis to recover the symbol rate timing clock of orthogonal frequency-division multiplexing (OFDM) is a new approach that can tolerate signal distortion from intersymbol interference (ISI) and intercarrier interference of encoding digital data on multiple carrier frequencies. Typically, the reception synchronization with wavelet signal analysis in OFDM can improve the performance over the fourier transform-based OFDM. However, a synchronization procedure that is stable against distortion and noise is essential to diminish the symbol synchronization establishment and operation sampling period. In this paper, we propose an OFDM synchronization system and analyze the impact of the wavelet denoise procedure on the OFDM system, which extracts the symbol rate of the OFDM frame. The evaluation results show that the proposed system can optimize the frequency window size to enable an efficient timing and frequency offset estimation with high and stable performance in terms of bit error rate (BER) and Frame Error Rate (FER) especially when the value of EbN0 (a normalized signal-to-noise ratio SNR measure) is greater than 8 dB, thanks to the wavelet transform.
KW - Orthogonal frequency-division multiplexing (OFDM)
KW - Symbol rate detection
KW - Synchronization
KW - Timing recovery system (TRS)
KW - Wavelet
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U2 - 10.12928/TELKOMNIKA.v18i3.14834
DO - 10.12928/TELKOMNIKA.v18i3.14834
M3 - Article
AN - SCOPUS:85084262517
SN - 1693-6930
VL - 18
SP - 1658
EP - 1670
JO - Telkomnika (Telecommunication Computing Electronics and Control)
JF - Telkomnika (Telecommunication Computing Electronics and Control)
IS - 3
ER -