標題: Using specific and adaptive arrangement of grid-type pilot in channel estimation for white-lightLED-based OFDM visible light communication system
作者: Lin, Wan-Feng
Chow, Chi-Wai
Yeh, Chien-Hung
光電工程學系
Department of Photonics
關鍵字: Visible light communication (VLC);Optical wireless communication (OWC);Orthogonal frequency division multiplexing (OFDM);Pilot channel estimation
公開日期: 1-Mar-2015
摘要: Orthogonal frequency division multiplexing (OFDM) is a promising candidate for light emitting diode (LED)-based optical wireless communication (OWC); however, precise channel estimation is required for synchronization and equalization. In this work, we study and discover that the channel response of the white-lightLED-based OWC was smooth and stable. Hence we propose and demonstrate using a specific and adaptive arrangement of grid-type pilot scheme to estimate the LED OWC channel response. Experimental results show that our scheme can achieve better transmission performance and with some transmission capacity enhancement when compared with the method using training-symbol scheme (also called block-type pilot scheme). (C) 2014 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.optcom.2014.09.080
http://hdl.handle.net/11536/124184
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2014.09.080
期刊: OPTICS COMMUNICATIONS
Volume: 338
結束頁: 10
Appears in Collections:Articles