Performance degradation of terahertz channels in emulated rain

Peian Li; Jiancheng Wang; Liangbin Zhao; Jianjun Ma; Houjun Sun; Lothar Moeller; John F. Federici

doi:10.1016/j.nancom.2022.100431

Performance degradation of terahertz channels in emulated rain

Peian Li, Jiancheng Wang, Liangbin Zhao, Jianjun Ma^*, Houjun Sun, Lothar Moeller, John F. Federici

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The ever-increasing capacity demand (up to Tbps in the foreseeable future) in wireless connectivity can supposed be satisfied by terahertz communications in the band from 100 GHz to 10 THz. This has been studied over short channel distances in laboratories using higher order modulation formats (QPSK, QAM). However, only very few reports on the THz channel performance in outdoor adverse weathers conditions are available due to the involved experimental difficulties. In this article, we report the performance of terahertz channels in emulated rain by utilizing a broadband pulse source and a 16-QAM modulated data stream. We observe that, a not precisely known of raindrop size distribution can be a major source of uncertainty for theoretical precipitation of power attenuation and bit error rate (BER). We also find that the channel degradation in rain is mainly due to power attenuation.

Original language	English
Article number	100431
Journal	Nano Communication Networks
Volume	35
DOIs	https://doi.org/10.1016/j.nancom.2022.100431
Publication status	Published - Mar 2023

Keywords

BER
Falling rain
Power attenuation
Rain chamber
Raindrop size distribution
Terahertz wireless communication

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10.1016/j.nancom.2022.100431

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title = "Performance degradation of terahertz channels in emulated rain",

abstract = "The ever-increasing capacity demand (up to Tbps in the foreseeable future) in wireless connectivity can supposed be satisfied by terahertz communications in the band from 100 GHz to 10 THz. This has been studied over short channel distances in laboratories using higher order modulation formats (QPSK, QAM). However, only very few reports on the THz channel performance in outdoor adverse weathers conditions are available due to the involved experimental difficulties. In this article, we report the performance of terahertz channels in emulated rain by utilizing a broadband pulse source and a 16-QAM modulated data stream. We observe that, a not precisely known of raindrop size distribution can be a major source of uncertainty for theoretical precipitation of power attenuation and bit error rate (BER). We also find that the channel degradation in rain is mainly due to power attenuation.",

keywords = "BER, Falling rain, Power attenuation, Rain chamber, Raindrop size distribution, Terahertz wireless communication",

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AU - Li, Peian

AU - Wang, Jiancheng

AU - Zhao, Liangbin

AU - Ma, Jianjun

AU - Sun, Houjun

AU - Moeller, Lothar

AU - Federici, John F.

PY - 2023/3

Y1 - 2023/3

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AB - The ever-increasing capacity demand (up to Tbps in the foreseeable future) in wireless connectivity can supposed be satisfied by terahertz communications in the band from 100 GHz to 10 THz. This has been studied over short channel distances in laboratories using higher order modulation formats (QPSK, QAM). However, only very few reports on the THz channel performance in outdoor adverse weathers conditions are available due to the involved experimental difficulties. In this article, we report the performance of terahertz channels in emulated rain by utilizing a broadband pulse source and a 16-QAM modulated data stream. We observe that, a not precisely known of raindrop size distribution can be a major source of uncertainty for theoretical precipitation of power attenuation and bit error rate (BER). We also find that the channel degradation in rain is mainly due to power attenuation.

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KW - Power attenuation

KW - Rain chamber

KW - Raindrop size distribution

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Performance degradation of terahertz channels in emulated rain

Abstract

Keywords

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