Particulate matter (PM) has a diameter of few micrometers, which causes different illnesses.
We used visible light communication (VLC) to transfer PM data to a user monitoring terminal …

In this study, we have focused on monitoring indoor particulate matter by using multiple
pulse position modulation (MPPM) to transfer fine particulate matter (PM) data in long …

High-speed multi-user access with high spectral efficiency is one of the key challenges for
band-limited visible light communication (VLC) systems. In this paper, we propose a novel …

Communication is one of the most important foundations in the Internet of Things. Although
some cutting‐edge technologies, such as 5G, have greatly empowered edge computing …

Multi-coded variable PPM (MC-VPPM) is a modulation technique for visible light
communication (VLC), providing high data rate transmission and processing gain …

We propose a variable multi-pulse pulse-position-modulation (VMPPM) system with a
dimming control that combines the use of pseudo-orthogonal codes and MPPM. In VMPPM …

Visible light communication (VLC) has emerged as a promising complementary technology
to millimeter-wave communications for short-range communications to meet the increasing …

Visible light communication and positioning (VLCP) is a promising candidate for
constructing a multi-functional wireless network with large-scale connectivity and centimeter …

Air pollution has become a global issue from the perspective of public health and the social
economy. Of the various air pollutants, fine particulate matter (PM2. 5), which is less than 2.5 …

Novel technologies based on pulse amplitude modulation (PAM) are studied for a high-
speed visible light communication (VLC) system. In this paper, we summarize the latest …