Double-decker：使用单一商用接收器的高效反向散射通信
Double-decker: Productive Backscatter Communication Using a Single Commodity Receiver
AI总结：
提出新型反向散射系统double-decker，通过将载波OFDM符号分为导频和数据符号，仅需单一商用接收器即可解调，实现35.2kbps标签速率和28米通信范围，解决了传统系统需双接收器的问题。
摘要：
反向散射通信因其超低功耗而在物联网应用中备受关注。最先进的反向散射系统不再需要专用的载波发生器，而是利用环境信号作为载波。然而，一个新挑战正在出现：大多数现有系统需要双接收器同时捕获原始和反向散射信号以进行标签数据解调。这不利于反向散射通信的广泛部署。为解决这一问题，我们提出了double-decker，一种仅需单一商业设备即可进行反向散射通信的新型系统。其关键技术是将载波OFDM符号分为两部分：导频符号和数据符号。导频符号可作为标签数据解调的参考信号，从而摆脱对双接收器结构的依赖。我们构建了FPGA原型并进行了大量实验。实证结果表明，当激励信号为802.11g时，double-decker分别实现了35.2kbps的标签数据速率和38kbps的有效数据速率。在LOS部署下通信范围达28米，NLOS部署下达24米。
英文摘要：
Backscatter communication has attracted significant attention for Internet-of-Things applications due to its ultra-low-power consumption. The state-of-the-art backscatter systems no longer require dedicated carrier generators and leverage ambient signals as carriers. However, there is an emerging challenge: most prior systems need dual receivers to capture the original and backscattered signals at the same time for tag data demodulation. This is not conducive to the widespread deployment of backscatter communication. To address this problem, we present double-decker, a novel backscatter system that only requires a single commercial device for backscatter communication. The key technology of double-decker is to divide the carrier OFDM symbols into two parts, which are pilot symbols and data symbols. Pilot symbols can be used as reference signals for tag data demodulation, thus getting rid of the dependence on the dual receiver structure. We have built an FPGA prototype and conducted extensive experiments. Empirical results show that when the excitation signal is 802.11g, double-decker achieves a tag data rate of 35.2kbps and a productive data rate of 38kbps, respectively. The communication range of double-decker is up to 28m in LOS deployment and 24m in NLOS deployment.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
