TY - JOUR
T1 - Hybrid Optical Wireless Communication for Versatile IoT Applications: Data Rate Improvement and Analysis
AU - Teli, Shivani Rajendra
AU - Guerra-Yanez, Carlos
AU - Matus, Vicente
AU - Perez-Jimenez, Rafael
AU - Ghassemlooy, Zabih
AU - Zvanovec, Stanislav
N1 - Funding Information:
This work was supported in part by the Czech Technical University (CTU) in Prague under the CTU Global Postdoctoral Fellowship Program, in part by the European Cooperation in Science and Technology (COST) Action CA19111 (Newfocus), and in part by CTU under Project SGS23/168/OHK3/3T/13.
PY - 2023
Y1 - 2023
N2 - This paper outlines the concept of a multilevel bipolar on-off keying hybrid optical wireless communication (OWC) system using a single light-emitting diode (LED) as a transmitter as well as photodiode and camera-based receivers for versatile indoor Internet of Things applications. The proposed system offers simultaneous high- and low-speed transmission capabilities using visible light communication (VLC) and optical camera communication (OCC) links, respectively. By means of experimental implementation, we show that the hybrid OWC system employing a chip LED modulated with a multilevel signal improves the data rate Rb as well as the bit error rate and reception success rate of VLC and OCC links, respectively, by doubling the bandwidth. We show that the proposed scheme can provide an independent link performance, irrespective of significant differences between the operating Rb of VLC and OCC over a range of transmission spans L. We demonstrate that the throughput of the VLC link is improved by up to ~100 Mb/s, which corresponds to twice the LED bandwidth, using direct modulation, different amplitude levels, and optimizing the received optical power of the hybrid OWC link. Error-free data transmission for the OCC link is achieved for all values of Rb, amplitude overlap of 0 and 0.3, and a range of L.
AB - This paper outlines the concept of a multilevel bipolar on-off keying hybrid optical wireless communication (OWC) system using a single light-emitting diode (LED) as a transmitter as well as photodiode and camera-based receivers for versatile indoor Internet of Things applications. The proposed system offers simultaneous high- and low-speed transmission capabilities using visible light communication (VLC) and optical camera communication (OCC) links, respectively. By means of experimental implementation, we show that the hybrid OWC system employing a chip LED modulated with a multilevel signal improves the data rate Rb as well as the bit error rate and reception success rate of VLC and OCC links, respectively, by doubling the bandwidth. We show that the proposed scheme can provide an independent link performance, irrespective of significant differences between the operating Rb of VLC and OCC over a range of transmission spans L. We demonstrate that the throughput of the VLC link is improved by up to ~100 Mb/s, which corresponds to twice the LED bandwidth, using direct modulation, different amplitude levels, and optimizing the received optical power of the hybrid OWC link. Error-free data transmission for the OCC link is achieved for all values of Rb, amplitude overlap of 0 and 0.3, and a range of L.
KW - Internet of Things (IoT)
KW - Optical wireless communications (OWC)
KW - light emitting diodes (LEDs)
KW - optical camera communications (OCC)
KW - photodiode (PD)
KW - visible light communications (VLC)
UR - http://www.scopus.com/inward/record.url?scp=85161003484&partnerID=8YFLogxK
U2 - 10.1109/access.2023.3280850
DO - 10.1109/access.2023.3280850
M3 - Article
SN - 2169-3536
VL - 11
SP - 55107
EP - 55116
JO - IEEE Access
JF - IEEE Access
ER -