Title :
A novel timing synchronization method for U-OFDM-based visible light communication
Author :
Zhiyuan Du;Xian Zhou;Keping Long
Author_Institution :
Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing (USTB), Beijing, China
Abstract :
Unipolar orthogonal frequency division multiplexing (U-OFDM) is compatible with optical intensity modulation and attract attention recently. Existing synchronization methods cannot be used directly or do not perform well in U-OFDM systems because U-OFDM signals are unipolar. Therefore, a novel synchronization algorithm, i.e., negative mirror image (NMI) algorithm, is proposed, where the training sequence is re-designed based on the characteristics of U-OFDM. Analysis and simulation results demonstrate that the proposed NMI method has excellent synchronization performance for the U-OFDM systems.
Keywords :
"Synchronization","OFDM","Training","Optical modulation","Adaptive optics"
Conference_Titel :
Wireless and Optical Communication Conference (WOCC), 2015 24th
Print_ISBN :
978-1-4799-8868-6
Electronic_ISBN :
2379-1276
DOI :
10.1109/WOCC.2015.7346178
