Summary
International Conference on Emerging Technologies for Communications
2021
Session Number:B3
Session:
Number:B3-1
Adaptive thresholding with cell-size reduction for low-luminance, space-division-multiplexing, uplink optical camera communication
Alisa Kawade, Wataru Chujo, Kentaro Kobayashi ,
pp.-
Publication Date:2021/12/1
Online ISSN:2188-5079
Summary:
Cell-size reduction based adaptive thresholding is proposed and experimentally verified for low-luminance, space division multiplexing, uplink optical camera communication. The uplink consists of a smartphone embedded display to an indoor camera at a distance of 3.5 m. The adaptive thresholding with cell-size reduction overcomes spatial inter-symbol interference and low luminance display for simultaneous enhancement of data rate and physical security. When number of the cells per image is 100 × 100, symbol error rate in 1×10e-4 range was achieved at 300 kilo symbols per second with the lowest display luminance by the adaptive thresholding with cell-size reduction.