A channel estimation scheme for HACO-OFDM system-based visible light communications

Tao Wang; Yonghong Hou; Haoyuan Zhang; Shanji Chen

doi:10.1117/12.2522834

14 February 2019 A channel estimation scheme for HACO-OFDM system-based visible light communications

Tao Wang, Yonghong Hou, Haoyuan Zhang, Shanji Chen

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104821 (2019) https://doi.org/10.1117/12.2522834
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

For the first time, a channel estimation method for hybrid ACO-OFDM (HACO-OFDM) based visible light communications systems is proposed. The channel characteristics carried on the ACO-OFDM subcarriers are estimated by the least square (LS) method, and the channel response on the PAM-DMT subcarriers can be obtained by linear interpolation of which on the ACO-OFDM subcarriers. While considering the multipath channel in the paper, the simulation results show that the proposed scheme is able to estimate the channel effectively for HACOOFDM system. After equalization based on the results of the channel estimation, the average BER on the ACOOFDM branch will be lower than10^-3when SNR>18.2dB, the average BER on the pulse-amplitude-modulated discrete multitone (PAM-DMT) branch will be lower than 10^-3 when SNR>19.4dB.

Citation Download Citation

Tao Wang, Yonghong Hou, Haoyuan Zhang, and Shanji Chen "A channel estimation scheme for HACO-OFDM system-based visible light communications", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104821 (14 February 2019); https://doi.org/10.1117/12.2522834

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Telecommunications

Orthogonal frequency division multiplexing

Signal to noise ratio

Error analysis

Transmitters

Communication engineering

Distortion

Show All Keywords

Keywords/Phrases

Search In:

Publication Years