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Passive DSSS - Empowering the Downlink Communication for Backscatter Systems
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- 1 Intro
- 2 Downlink and Uplink are highly asymmetric
- 3 We propose Passive DSSS (Direct-Sequence Spread Spectrum)
- 4 Key challenge to achieve DSSS on the downlink
- 5 Basic idea of Passive DSSS
- 6 cannot demodulate existing DSSS signals
- 7 how to suppress interference from both channels
- 8 correlation calculation requires signal processing
- 9 Passive DSSS receiver design
- 10 Experimental setup
- 11 Evaluation - Performance and baseline
- 12 Evaluation - Interference Resistance
- 13 Evaluation Downlink Range
