Full-spectrum ranging from sub-6 GHz to THz and visible light will be exploited in 6G in order to reach unprecedented key-performance-indica-tors. However, an extraordinary amount of energy will be consumed by network infrastructure, while functions of massively deployed Internet of Everything (IoE) devices are limited by embedded batteries. Therefore, energy self-sustainable (ESS) 6G is proposed in this article. First of all, it may achieve network-wide energy efficiency by exploiting cell-free and airborne access networks as well as by implementing intelligent reflecting surfaces (IRSs). Second, by exploiting radio-frequency/visible-light signals for on-demand wireless information and energy provision (WIEP) and for enabling passive backscatter communication, “zero-energy” IoE devices may become a reality. Furthermore, IoE devices actively adapt their transceivers for better performance to a dynamic environment. Case studies of cell-free and IRS based WIEP are provided for demonstrating the advantage of our proposed architecture in terms of energy self-sustainability. This article aims to provide a first glance at primary designing principles of ESS-6G.

中文翻译：

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全频谱6G的能量自我可持续性

6G将利用从6 GHz以下到THz的全光谱和可见光，以达到前所未有的关键性能指标。但是，网络基础架构将消耗大量能量，而大规模部署的万物互联（IoE）设备的功能受到嵌入式电池的限制。因此，本文提出了能量自持（ESS）6G。首先，它可以通过开发无蜂窝和机载接入网络以及实现智能反射面（IRS）来实现全网能源效率。其次，通过将射频/可见光信号用于按需无线信息和能量供应（WIEP）并启用无源反向散射通信，“零能耗” IoE设备可能成为现实。此外，IoE设备积极调整其收发器，以在动态环境中获得更好的性能。提供了无细胞和基于IRS的WIEP的案例研究，以证明我们提出的体系结构在能源自我可持续性方面的优势。本文旨在初步了解ESS-6G的主要设计原理。