Dang, K., Nguyen, P. and Ochi, H. 2015. An auto synchronization technique of unipolar MPAM signals in OFDM and its application for optical wireless communication systems. Science and Technology Development Journal. 18, 3 (Aug. 2015), 218-224. DOI:https://doi.org/https://doi.org/10.32508/stdj.v18i3.839.