面向工业物联网的拍赫兹通信

doi:10.11959/j.issn.2096-3750.2022.00277

物联网学报 ›› 2022, Vol. 6 ›› Issue (3): 37-46.doi: 10.11959/j.issn.2096-3750.2022.00277

• 专题：物联网与无线光通信 • 上一篇下一篇

面向工业物联网的拍赫兹通信

黄诺¹^,², 刘伟杰¹^,², 龚晨¹^,²

¹ 中国科学技术大学信息科学技术学院，安徽合肥 230026
² 中国科学院无线光电通信重点实验室，安徽合肥 230026

修回日期:2022-06-17 出版日期:2022-08-05 发布日期:2022-08-08
作者简介:黄诺（1991- ），男，博士，中国科学技术大学特任副研究员，主要研究方向为无线光电通信中的资源分配和传输方案设计等
刘伟杰（1993- ），男，博士，中国科学技术大学在站博士后，主要研究方向为无线光通信、非理想条件下的光收发机优化设计、数字信号处理、摄像机通信等
龚晨（1983- ），男，博士，中国科学技术大学教授、博士生导师，主要研究方向为无线通信、无线光通信和无线大数据等
基金资助:
国家重点研发计划(2018YFB1801904);国家自然科学基金资助项目(61631018);国家自然科学基金资助项目(62171428);国家自然科学基金资助项目(62101526);中国科学院前沿科学重点研究计划项目(QYZDY-SSW-JSC003);中央高校基本科研业务费专项资金资助项目(KY2100000118)

Industrial IoT oriented petahertz communication

Nuo HUANG¹^,², Weijie LIU¹^,², Chen GONG¹^,²

¹ School of Information Science and Technology, University of Science and Technology of China, Hefei 230026, China
² Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, Hefei 230026, China

Revised:2022-06-17 Online:2022-08-05 Published:2022-08-08
Supported by:
The National Key Research and Development Program of China(2018YFB1801904);The National Natural Science Foundation of China(61631018);The National Natural Science Foundation of China(62171428);The National Natural Science Foundation of China(62101526);The Key Research Program of Frontier Sciences of Chinese Academy of Sciences(QYZDY-SSW-JSC003);The Fundamental Research Funds for the Central Universities(KY2100000118)

摘要/Abstract

摘要：

相比于传统无线射频通信，拍赫兹通信（PetaCom, petahertz communication）具有高速率、低时延和高确定性等显著优势，在工业物联网（IIoT, industrial internet of things）中可以发挥更大的应用潜力。然而，在实际场景中，面向IIoT的PetaCom仍存在链路不稳定和信号干扰等问题。从IIoT和PetaCom的基本概念出发，对面向IIoT的PetaCom进行了全面概述和总结，包括信道建模、物理层技术、用户组网、优势与挑战等方面，旨在为今后面向IIoT的PetaCom相关研究提供参考。

关键词: 工业物联网, 拍赫兹通信, 高速率, 低时延, 高确定性

Abstract:

Compared with traditional radio frequency communication, petahertz communication (PetaCom) enjoys several distinct advantages including high data rate, low latency and high determinacy, exhibiting essential application potential in industrial internet of things (IIoT).However, IIoT oriented PetaCom suffers issues of link instability and interference in real scenarios.Starting from the basic concepts of IIoT and PetaCom, a comprehensive summary of IIoT oriented PetaCom was presented including channel modeling, physical-layer technologies, user networking, advantages and challenges.The goal is to provide guidance for relevant researches on IIoT oriented PetaCom in the future.

Key words: industrial internet of things, petahertz communication, high data rate, low latency, high determinacy

中图分类号:

TN929

黄诺, 刘伟杰, 龚晨. 面向工业物联网的拍赫兹通信[J]. 物联网学报, 2022, 6(3): 37-46.

Nuo HUANG, Weijie LIU, Chen GONG. Industrial IoT oriented petahertz communication[J]. Chinese Journal on Internet of Things, 2022, 6(3): 37-46.

图/表 6

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使用场景	候选频谱
室内无线通信	上行850～1 550 nm，下行380～780 nm
沉浸式XR	850～1 550 nm
移动全息	380～780 nm
IIoT	250～1 550 nm
车载通信	250～1 550 nm
移动回传	850～1 550 nm
卫星网络	850～1 550 nm
水下网络	350～650 nm
近地面垂直通信	250～280 nm 850～1 550 nm

无线通信技术	毫米波	太赫兹	拍赫兹
频率范围	30～300 GHz	0.1～10 THz	0.01～100 PHz
最大数据速率	～10 Gbit/s	～Tbit/s	～100 Tbit/s
网络覆盖范围	小/中	小/中	大
基础设施花费	高	高	中等
EMI	高	高	低
安全性	中等	高	高
传输场景	室内/室外	室内/室外	室内/室外/水下
定位精度	低	中等	中等/高
感知/成像	是	是	是
照明/显示	否	否	是

波长/nm	425	520	585	675
铜	0.58	0.63	0.85	0.95
铁	0.52	0.55	0.57	0.58
铝	0.92	0.92	0.92	0.90
银	0.96	0.99	0.99	0.99
镍	0.53	0.58	0.61	0.67
铬	0.70	0.67	0.64	0.63

QoS需求		工业通信场景
QoS需求	环境监控	过程自动化	工厂自动化
实时性需求	非实时/软实时	软实时	硬实时
时延要求	＞100 ms	10～100 ms	≤10 ms
抖动	―	―	≤1 ms
可靠性要求	10^-4～10^-3	10^-4～10^-3	10^-12～10^-6
传输周期	0.01～10 s	0.001～5 s	0.05～1 ms
数据包大小	30～1 500 byte	30～1 500 byte	15～64 byte

面向工业物联网的拍赫兹通信

Industrial IoT oriented petahertz communication

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参考文献 56

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