Enable Autonomous Backscatter in Everyday Devices

Recent research has integrated backscatter mechanisms into existing wireless networks, aiming to enable backscatter transmitters to communicate directly using conventional wireless protocols. This would allow for low-power wireless communication within today's network infrastructure. However, the lack of native support poses a challenge in seamlessly accommodating backscatter transmitters within legacy infrastructure. This paper introduces EMScatter, a backscatter system designed for commodity mobile devices. It eliminates the need for an external excitation source separate from the transceiver peers. The proposed approach utilizes the inherent electromagnetic radiation (EMR) signals emitted by the device as the excitation signal, effectively transforming commodity mobile devices into backscatter readers. Users can utilize their mobile devices to directly communicate with backscatter tags anytime and anywhere.