光纤无线电
正交频分复用
无线
正交调幅
电子工程
计算机科学
卡姆
无线电频率
多路复用
传输(电信)
调幅
电气工程
电信
频道(广播)
工程类
频率调制
误码率
作者
Shiwei Wang,Zijie Lu,Wei Li,Shi Jia,Lu Zhang,Mengyao Qiao,Xiaodan Pang,Nazar Muhammad Idrees,Muhammad Saqlain,Xiang Gao,Xiaoxiao Cao,Changxing Lin,Qiuyu Wu,Xianmin Zhang,Xianbin Yu
出处
期刊:APL photonics
[American Institute of Physics]
日期:2020-05-01
卷期号:5 (5)
被引量:67
摘要
Recently, remarkable efforts have been made in developing wireless communication systems at ultrahigh data rates, with radio frequency (RF) carriers in the millimeter wave (30–300 GHz) and/or in the terahertz (THz, >300 GHz) bands. Converged technologies combining both the electronics and the photonics show great potential to provide feasible solutions with superior performance compared to conventional RF technologies. However, technical challenges remain to be overcome in order to support high data rates with considerably feasible wireless distances for practical applications, particularly in the THz region. In this work, we present an experimental demonstration of a single-channel THz radio-over-fiber (RoF) system operating at 350 GHz, achieving beyond 100 Gbit/s data rate over a 10-km fiber plus a >20-m wireless link, without using any THz amplifiers. This achievement is enabled by using an orthogonal frequency division multiplexing signal with a probabilistic-shaped 16-ary quadrature amplitude modulation format, a pair of highly directive Cassegrain antennas, and advanced digital signal processing techniques. This work pushes the THz RoF technology one step closer to ultrahigh-speed indoor wireless applications and serves as an essential segment of the converged fiber-wireless access networks in the beyond 5G era.
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