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Intelligent Reflecting Surface-assisted Free-space Optical Communications
arXiv - CS - Emerging Technologies Pub Date : 2021-05-13 , DOI: arxiv-2105.13297
Vahid Jamali, Hedieh Ajam, Marzieh Najafi, Bernhard Schmauss, Robert Schober, H. Vincent Poor

Free-space optical (FSO) systems are able to offer the high data-rate, secure, and cost-efficient communication links required for applications such as wireless front- and backhauling for 5G and 6G communication networks. Despite the substantial advancement of FSO systems over the past decades, the requirement of a line-of-sight connection between transmitter and receiver remains a key limiting factor for their deployment. In this paper, we discuss the potential role of intelligent reflecting surfaces (IRSs) as a solution to relax this requirement. We present an overview of existing optical IRS technologies; compare optical IRSs with radio-frequency IRSs and optical relays; and identify various open problems for future research on IRS-assisted FSO communications.

中文翻译:

智能反射面辅助自由空间光通信

自由空间光 (FSO) 系统能够提供 5G 和 6G 通信网络的无线前传和回传等应用所需的高数据速率、安全且经济高效的通信链路。尽管 FSO 系统在过去几十年里取得了长足进步,但发射机和接收机之间的视线连接要求仍然是其部署的关键限制因素。在本文中,我们讨论了智能反射面 (IRS) 作为放松这一要求的解决方案的潜在作用。我们概述了现有的光学 IRS 技术;将光学 IRS 与射频 IRS 和光中继进行比较;并为 IRS 辅助 FSO 通信的未来研究确定各种未解决的问题。
更新日期:2021-05-28
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