Large Intelligent Surface/Antennas (LISA): Making Reflective Radios Smart

Large Intelligent Surface/Antennas (LISA): Making Reflective Radios Smart
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大型智能表面/天线 (LISA):使反射式无线电变得智能

DOI:
10.23919/jcin.2019.8917871
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发表时间:
2019-06
期刊:
Journal of Communications and Information Networks
影响因子:
--
通讯作者:
Huayan Guo
Huayan Guo
中科院分区:
其他
文献类型:
--
作者:
Ying-Chang Liang;Ruizhe Long;Qianqian Zhang;Jie Chen;Hei Victor Cheng;Huayan Guo

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大型智能表面/天线(丽莎)是一种具有大量反射表面/天线单元的二维人工结构,是一种很有前途的反射式无线电技术,可用于智能地构建可编程无线环境。具体而言,丽莎的每个元素都可以调整具有非自然属性的入射电磁波的反射,例如负折射,完美吸收和异常反射,因此可以根据各种设计目标来定义无线环境。本文介绍了反射无线电的基本原理,包括后向散射原理、后向散射通信和反射中继,以及丽莎技术的基本原理和实现。然后,我们提出了一个概述的国家的最先进的研究新兴的应用程序的ISA辅助无线网络。最后,限制,挑战,并与未来的无线应用程序与丽莎开放的问题进行了讨论。
Large intelligent surface/antennas (LISA), a two-dimensional artificial structure with a large number of reflective-surface/antenna elements, is a promising reflective radio technology to construct programmable wireless environments in a smart way. Specifically, each element of the LISA adjusts the reflection of the incident electromagnetic waves with unnatural properties, such as negative refraction, perfect absorption, and anomalous reflection, thus the wireless environments can be software-defined according to various design objectives. In this paper, we introduce the reflective radio basics, including backscattering principles, backscatter communication, and reflective relay, and the fundamentals and implementations of LISA technology. Then, we present an overview of the state-of-the-art research on emerging applications of LISA-aided wireless networks. Finally, the limitations, challenges, and open issues associated with LISA for future wireless applications are discussed.
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