A Blind Timing Synchronization Algorithm For DCO-OFDM VLC systems
Visible Light Communication (VLC) systems are more vulnerable to timing synchronization problems due to the employed incoherent modulation scheme. In this work, a blind timing synchronization algorithm is introduced to DC biased Optical Orthogonal Frequency Division Multiplexing (DCO-OFDM) systems,...
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Veröffentlicht in: | IEEE photonics technology letters 2020-09, Vol.32 (17), p.1-1 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Visible Light Communication (VLC) systems are more vulnerable to timing synchronization problems due to the employed incoherent modulation scheme. In this work, a blind timing synchronization algorithm is introduced to DC biased Optical Orthogonal Frequency Division Multiplexing (DCO-OFDM) systems, based on cyclostationarity of the received signal that relies on second-order statistics only. It does not require any channel impulse response, as it is a blind estimator. The performance of the proposed estimator is evaluated using computer simulations in the Lab-view software and also validated through experimental results obtained using the VLC testbed using Universal Software defined Radio Peripheral (USRP) hardware. |
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ISSN: | 1041-1135 1941-0174 |
DOI: | 10.1109/LPT.2020.3013447 |