No abstract

No abstract

No abstract

WiFi backscatter tags can enable direct connectivity of IoT devices with commodity WiFi hardware at low power. However, most state of the art backscatter tag implementations in this area have limited transmitter to tag range and are not suitable to be deployed in a WiFi mesh network nor take full advantage of today's WiFi networks. In this paper, we present BeamScatter, which can realize a backscatter tag based on MIMO techniques that can work at very long separation of 28m from an access-point and enables their deployment in WiFi mesh networks. BeamScatter presents a novel technique to perform beam-steering on the MIMO tag at a very low power consumption of 88µW and achieve a peak throughput of 1Mbps. Next BeamScatter creates a novel modeling framework to decide the optimal phase setting on the tag to steer the backscattered signal towards a specific direction of interest.

No abstract