Abstract

An integrated fiber-free-space optical (FSO)-fifth-generation (5G) new radio (NR) sub-THz link through a cross-media of 20 km single-mode fiber (SMF), 500 m optical wireless, and 0.5 m RF wireless is proposed and successfully implemented. 5G NR communication operates effectively with four sub-THz frequencies of 150, 175, 200, and 225 GHz. Each sub-THz frequency carries a 21.528-Gbps 32-QAM-OFDM signal. By transmitting four 5G sub-THz signals, an integrated fiber-FSO-wireless link with high aggregate data rates of 86.112 Gbps (21.528 Gbps × 4) is realized. It is an innovative link to extend 5G communications to 86.112 Gbps data rates over long-haul wired/wireless transmission. Satisfactorily low bit error rate (<3.8 × 10⁻³ forward error correction limit) and error vector magnitude (<10%) show that this newly demonstrated fiber-FSO-wireless link is promising for 5G NR communication in sub-THz band. It exhibits an excellent fiber-FSO-5G NR sub-THz link with the vantages of high accumulative data rates, long-haul wired-wireless transmission, and low complexity.

Transmission of sub-terahertz signals over a fiber-FSO-5 G NR hybrid system with an aggregate net bit rate of 227.912 Gb/s

Hai-Han Lu, Wen-Shing Tsai, Xu-Hong Huang, Jia-Lian Jin, Yan-Zhen Xu, Wei-Xiang Chen, Chih-Hong Lin, and Tsai-Man Wu
Opt. Express 31(20) 33320-33332 (2023)

Full-duplex transmission of multi-Gb/s subcarrier multiplexing and 5G NR signals in 39 GHz band over fiber and space

Dong-Nhat Nguyen, Luis Vallejo, Vincenc Almenar, Beatriz Ortega, Pham Tien Dat, Son Thai Le, Jan Bohata, and Stanislav Zvanovec
Appl. Opt. 61(5) 1183-1193 (2022)

Experimental comparison of DSB and CS-DSB mmW formats over a hybrid fiber and FSO fronthaul network for 5G

J. Bohata, D. N. Nguyen, J. Spáčil, M. Komanec, B. Ortega, L. Vallejo, Z. Ghassemlooy, and S. Zvánovec
Opt. Express 29(17) 27768-27782 (2021)

M-QAM transmission over hybrid microwave photonic links at the K-band

Dong-Nhat Nguyen, Jan Bohata, Jan Spacil, Daniel Dousek, Matej Komanec, Stanislav Zvanovec, Zabih Ghassemlooy, and Beatriz Ortega
Opt. Express 27(23) 33745-33756 (2019)

Real-time demonstration of 103.125-Gbps fiber–THz–fiber 2 × 2 MIMO transparent transmission at 360–430 GHz based on photonics

Jiao Zhang, Min Zhu, Mingzheng Lei, Bingchang Hua, Yuancheng Cai, Yucong Zou, Liang Tian, Aijie Li, Yanyi Wang, Yongming Huang, Jianjun Yu, and Xiaohu You
Opt. Lett. 47(5) 1214-1217 (2022)