面向无源物联网的环境反向散射通信技术

Ambient backscatter communications technology for batteryless IoT

环境反向散射通信技术具有低功耗和低成本的特征,是支撑无源物联网的核心使能技术之一。首先介绍了环境反向散射通信技术的基本概念和国内外研究现状,然后在深入分析环境反向散射通信技术与RFID技术区别的基础上,详细描述了环境反向散射通信系统面临的技术难点,包括检测时延长、误码率高、传输速率低以及通信距离短,进而提出了一系列潜在的解决方法,最后对环境反向散射通信的未来研究方向进行了展望。

As one of the core enabling technologies supporting the batteryless Internet of things(IoT),ambient backscattering communication technology has the characteristics of low power consumption and low cost.Firstly,the basic concept of ambient backscattering communication technology and the research status at home and abroad were introduced.Then,based on an in-depth analysis of the differences between ambient backscattering communication technology and RFID technology,the technical difficulties faced by the ambient backscattering communication system were described in detail,including large detection delay,high bit error rate,low transmission rate and short communication distance.In addition,a series of potential solutions to the challenges were proposed.Finally,the future research directions of ambient backscattering communication were prospected.