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RF BACKSCATTER SYSTEM BASED ON LIGHT FIDELITY
Patent number:
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The present invention relates to an architecture for a system which implements LiFi, "Light Fidelity", communication technology for downlink to a low-power, "Internet of Things", tag device, along with RF backscatter system for uplink. In the proposed approach, data is transmitted from the IoT tag at extremely low power.
Countries:
Spain
Regions:
Community of Madrid
Centers:
FUNDACION IMDEA NETWORKS
Other entities:
Sectors:
Food & Agro
Telecom
Subsectors:
Computer technology, Control, Digital communication, Telecommunications
TRL Level:
TRL 5 – technology validated in relevant environment (industrially relevant environment in the case of key enabling technologies)
BRL Level:
PDF Link:
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Applications
Our design uses LiFi in downlink and RF backscatter in uplink. It introduces a modulation scheme for the downlink LiFi transmitter, which is received and mixed by the IoT tag with the input RF carrier from the environment in order to transmit data with uplink RF backscatter signals. This approach results in consumption of the IoT tags in the order of few microWatts. For comparison, WiFi consumes hundreds of milliWatts.
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