Run-length limited codes for backscatter communication
Published
Conference Paper
© 2017 IEEE. In backscatter communications, ultra-low power devices signal by modulating the reflection of radio frequency signals emitted from an external source. Unlike conventional one-way communication, the backscatter channel experiences unique self-interference and spread Doppler clutter. Run-length limited (RLL) codes provide a method for spectrum shaping that requires no hardware changes to the communicating devices. The proposed coding framework is suitable for any arbitrarily-shaped pulse train or continuous wave reader waveform. It exploits the unique channel Doppler spread statistics to offer a trade-off between interference rejection and data rate. Analysis shows that code rates of 1 and 4/5 are achievable when dealing with low spread Doppler channels, which is an improvement over the current rate 1/2 with current mainstream backscatter communication techniques. Simulation results with realistic channel assumptions are analyzed and discussed to confirm the theoretical analysis.
Full Text
Duke Authors
Cited Authors
- Cnaan-On, I; Harms, A; Krolik, JL; Calderbank, AR
Published Date
- June 16, 2017
Published In
Start / End Page
- 6110 - 6114
International Standard Serial Number (ISSN)
- 1520-6149
International Standard Book Number 13 (ISBN-13)
- 9781509041176
Digital Object Identifier (DOI)
- 10.1109/ICASSP.2017.7953330
Citation Source
- Scopus