⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种被动式逆反射单边带调制MIMO阵列，通过非对称架构和背向散射技术，显著提升了WiFi背向散射的通信范围，解决了传统背向散射系统因信号衰减和干扰导致覆盖距离有限的问题。
Dinesh Bharadia1, Patrick P. Mercier1 University of California San Diego, La Jolla, CA Broadcom, San Diego, CA 1 2 Wi-Fi is the most ubiquitous wireless networking technology for IoT in homes, offices, and businesses. Since the power of Wi-Fi transceivers (10s-to-100s of mW) can be prohibitively high for emerging classes of IoT devices (which desire <100μW), recent work has suggested piggybacking baseband signals from the IoT device directly on top of incident Wi-Fi signals generated by access points (APs) via Wi-Fi-compatible backscatter modulation [1-4], where as low as 28μW of active power has been demonstrated [4]. However, the major limitation of this approach is range: signals generated by the transmitting AP experience 1/d2 path loss to the backscattering tag, which has insertion loss PL,ins to perform single-side band (SSB) modulation, and then re-radiated modulated signals back to the receiving AP (or to another AP) experience
Miao Meng1, Manideep Dunna1, Hans Yu1, Shihkai Kuo1, P-H. P. Wang1,2,