Abstract

An efficient demodulation scheme based on adaptive clock extraction and mapping-sampling is proposed and experimentally demonstrated for mobile optical camera communication (OCC) systems. For the proposed scheme, it can effectively improve the system performance in mobile OCC. The bit error rate (BER) performance of the proposed scheme and the other existing schemes are compared. The experimental results show that under the speed from 0.4 m/s to 0.7 m/s, it can significantly improve the system performance using the adaptive clock extraction and the mapping-sampling scheme in mobile OCC systems. Compared with the length estimation scheme, when the speed is 0.7 m/s, the BER can be improved from ${9.14} \times {{10}^{- 2}}$ to ${3.16} \times {{10}^{- 4}}$ at the exposure time of 1/12,000 s using the proposed scheme. In addition, the required memory and processing time of the proposed scheme are analyzed, which indicates that the proposed scheme has negligible influence on memory overhead and computational complexity.

© 2021 Optical Society of America

Effective interference mitigation scheme for multi-LED-based mobile optical camera communication

Yiting Yang, Jing He, and Biao Zhou
Appl. Opt. 60(35) 10928-10934 (2021)

Decoding scheme based on CNN for mobile optical camera communication

Ke Yu, Jing He, and Zheng Huang
Appl. Opt. 59(23) 7109-7113 (2020)

PAM4 rolling-shutter demodulation using a pixel-per-symbol labeling neural network for optical camera communications

Yun-Shen Lin, Chi-Wai Chow, Yang Liu, Yun-Han Chang, Kun-Hsien Lin, Yi-Chang Wang, and Yi-Yuan Chen
Opt. Express 29(20) 31680-31688 (2021)

Enhancing the performance of optical camera communication via accumulative sampling

Pinpin Zhang, Qiuyu Wang, Yanbing Yang, Yunfeng Wang, Yimao Sun, Wenzheng Xu, Jun Luo, and Liangyin Chen
Opt. Express 29(12) 19015-19023 (2021)

Enabling user mobility for optical camera communication using mobile phone

Jin Shi, Jing He, Jing He, Zhongwei Jiang, Yudong Zhou, and Yaoqiang Xiao
Opt. Express 26(17) 21762-21767 (2018)