Potential Transmission Choice for Internet of Things (IoT):Wireless and Batteryless Communications and Open Problems

• 作者: Zhan Xu Guanjie Hu Minzheng Jia Lan Dong
• 来源期刊: 中国通信（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: EMERGING TECHNOLOGLES & APPLICATIONS
• 页码范围: 241-249
• 页数: 9页
• 语种: 英文

摘要

The 5th generation mobile communica-tions aims at connecting everything and future Inter-net of Things (IoT) will get everything smartly con-nected. To realize it, there exist many challenges. One key challenge is the battery problem for small devices, such as sensors or tags. Batteryless backscatter, also referred to as or battery-free backscatter, is a new po-tential technology to address this problem. One early and typical type of batteryless backscatter is ambient backscatter. Generally, batteryless backscatter utilizes environmental wireless signals to enable battery-free devices to communicate with each other. These de-vices first harvest energy from ambient wireless sig-nals and then backscatter these signals so as to transmit their own information. This paper reviews the current studies about batteryless backscatter, including vari-ous backscatter schemes and theoretical works, and then introduces open problems for future research.