Gbit/s ultraviolet-C diffuse-line-of-sight communication based on probabilistically shaped DMT and diversity reception

Omar Alkhazragi, Fangchen Hu, Peng Zou, Yinaer Ha, Chun Hong Kang, Yuan Mao, Tien Khee Ng, Nan Chi, Boon S. Ooi

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

We demonstrated a high-speed 1×2 single-input and multiple-output (SIMO) diffuse-line-of-sight (diffuse-LOS) ultraviolet-C (UVC) solar-blind communication link over a distance of 5 meters. To approach the Shannon limit and improve the spectral efficiency, we implemented probabilistically shaped discrete multitone modulation. As compared to a single-input and single-output (SISO) counterpart, we observed significant improvement in the SIMO link in terms of the angle of view of the receiver and the immunity to emulated weather condition. A wide angle of view of ± 9° is achieved in the SIMO system, with up to a 1.09-Gbit/s achievable information rate (AIR) and a minimum value of 0.24 Gbit/s. Moreover, the bit error rate of the SIMO link in emulated foggy conditions is lowered significantly when compared to that of the SISO link. This work highlights the practicality of UVC communication over realistic distances and in turbulent environments to fill the research gap in high-speed, solar-blind communication.
Original languageEnglish (US)
Pages (from-to)9111
JournalOptics Express
Volume28
Issue number7
DOIs
StatePublished - Mar 16 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1614-01-01, GEN/1/6607-01-01, KCR/1/2081-01-01, KCR/1/4114-01-01, REP/1/2878-01-01
Acknowledgements: King Abdullah University of Science and Technology (BAS/1/1614-01-01, GEN/1/6607-01-01, KCR/1/2081-01-01, KCR/1/4114-01-01, REP/1/2878-01-01); King Abdulaziz City for Science and Technology (KACST TIC R2-FP-008); National Natural Science Foundation of China
(61925104); National Key Research and Development Program of China (2017YFB0403603).

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