Experimental Demonstrations of High-Capacity THz-Wireless Transmission Systems for Beyond 5G
Experimental Demonstrations of High-Capacity THz-Wireless Transmission Systems for Beyond 5G
复制标题
超越 5G 的高容量太赫兹无线传输系统的实验演示
DOI：
10.1109/mcom.001.2000306
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发表时间：
2020
影响因子：
11.2
通讯作者：
R. Freund
中科院分区：
文献类型：
--
作者：
C. Castro;R. Elschner;T. Merkle;C. Schubert;R. Freund
利用“太赫兹无线光纤扩展器”的概念，我们可以将无线网络的灵活性与光纤通信的高容量结合起来。在300 GHz左右的频段内，大量连续带宽的可用性为使用透明的模拟基带接口无缝互连相干太赫兹无线和光纤收发器前端创造了机会。在本文中，我们更详细地讨论了这一概念，并报告了最近演示的一种具有100gb /s网络容量的实时、短距离太赫兹无线光纤扩展器。该光纤/太赫兹无线联合传输系统由高速光纤实时调制解调器运行，该调制解调器能够补偿光链路和太赫兹无线链路的信道损伤。此外，我们还讨论了太赫兹无线链路实现远距离传输距离的潜力，并报告了德国柏林500米长的视距太赫兹无线户外链路的运行情况。我们分析了天气条件对传输性能的影响，并通过各种调制格式和符号速率确定了系统的最大物理层净数据速率。最后，我们总结了我们最近使用太赫兹无线传输的所有大容量实验，包括1公里长的链路的现场试验，并将我们的结果与理论极限和实验室中实现的数据速率进行了比较。
Using the concept of a "THz-wireless fiber extender," we can combine the flexibility of wireless networks with the high capacity of fiber optic communication. The availability of a large, contiguous bandwidth in the frequency band around 300 GHz creates the opportunity to seamlessly interconnect coherent THz-wireless and fiber optic transceiver frontends using a transparent, analog baseband interface. In this article, we discuss this concept in more detail and report on the recent demonstration of a real-time, short-range THz-wireless fiber extender with 100 Gb/s net capacity. This combined fiber optic/THz-wireless transmission system is operated by a high-speed fiber optic real-time modem, which is capable of compensating the channel impairments of both the optical and THz-wireless links. In addition, we discuss the potential of THz-wireless links to achieve long-range transmission distances by reporting on the operation of a 500-m-long line-of-sight THz-wireless outdoor link in Berlin, Germany. We analyze the effect of weather conditions on the transmission performance and determine the maximum physical layer net data rate of the system by means of various modulation formats and symbol rates. Finally, we summarize all of our recent high-capacity experiments using THz-wireless transmission, including a field trial with a 1-km-long link, and compare our results to theoretical limits and achieved data rates in the laboratory.
影响因子：
35
作者：
Koenig, S.;Lopez-Diaz, D.;Kallfass, I.
通讯作者：
Kallfass, I.