Experimental Demonstration of Non-Line-of-Sight MIMO Optical Camera Communications with DBPWR Algorithm

Ningcong Jiang, Bangjiang Lin, Zabih Ghassemlooy, Tianming Huang, Zhuo Huang, Othman Isam Younus

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


In this work, we propose a multiple inputs multiple outputs (MIMO) non-line-of-sight (NLOS) optical camera communication (OCC) system with multi-level pulse width modulation (MPWM) and difference-based pulse width recognition (DBPWR) schemes. The MPWM signals transmitted over a NLOS link are recovered using the DBPWR algorithm. Compared with the conventional threshold-based demodulation scheme, the proposed DBPWR scheme has lower complexity, higher reliability, and improved sampling frequency offset tolerance. A total data rate of 3.6 kb/s is experimentally demonstrated for more than 2 m NLOS link using the proposed MIMO OCC system, which is sufficient in many Internet of things applications.
Original languageEnglish
Title of host publication2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)
ISBN (Electronic)9781665410441
ISBN (Print)9781665410458
Publication statusPublished - 20 Jul 2022

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