Artificial Fast Fading from Reconfigurable Surfaces Enables Ultra-Reliable Communications

被引：2

作者：

Jorswieck, Eduard ^{[1
]}

Besser, Karl-Ludwig ^{[1
]}

Sun, Cong ^{[2
]}

机构：

[1] TU Braunschweig, Inst Commun Technol, Braunschweig, Germany

[2] Beijing Univ Posts & Telecommun, Sch Sci, Beijing, Peoples R China

来源：

2021 IEEE 22ND INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (SPAWC) | 2021年

基金：

中国国家自然科学基金;

关键词：

INTELLIGENT SURFACES; MODEL;

D O I：

10.1109/SPAWC51858.2021.9593269

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Reconfigurable intelligent surfaces (RISs) have been shown to be able to assist wireless communications in various scenarios by either increasing the received signal powers or neutralizing destructive signal parts such as interference. In order to tune the RIS elements, information about the component channels to and from the RIS are required. In this work, we let the RIS operate without channel state information and show that the outage probability of an RIS-assisted mmWave link can be significantly improved by choosing random phases. Furthermore, we show that the zero-outage capacity of the RIS-assisted link is positive. This enables robust ultra-reliable communications without the need for accurate channel estimation and feedback.

引用

页码：566 / 570

页数：5

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