Home // AICT 2019, The Fifteenth Advanced International Conference on Telecommunications // View article

Symbol Synchronization Technique for Visible Light Communications using CAZAC-OFDM Scheme

Authors:
Yuji Yoshihashi
Takuya Kazama
Masahiro Muraguchi

Keywords: OFDM; FFT; CAZAC; VLC; Synchronization.

Abstract:
Ordinary Orthogonal Frequency Division Multiplexing (OFDM) receivers acquire OFDM symbol synchronization in the preamble period and retain synchronization by using correlation of guard-intervals. In this paper, we propose a new technique of OFDM symbol synchronization for Visible Light Communication (VLC) using OFDM scheme with Constant Amplitude Zero Auto-Correlation (CAZAC) precoding, CAZAC-OFDM, which enable to avoid the use of the preamble and guard-intervals. Moreover, we can find out an accurate OFDM symbol timing after checking only two symbol size of Fast Fourier Transform (FFT) points with arbitrary start timing, even though those stride over adjacent two OFDM symbols.

Pages: 105 to 110

Copyright: Copyright (c) IARIA, 2019

Publication date: July 28, 2019

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-727-6

Location: Nice, France

Dates: from July 28, 2019 to August 2, 2019