Frequency-Shift Chirp Spread Spectrum Communications With Index Modulation.
Muhammad HanifHa H. NguyenPublished in: IEEE Internet Things J. (2021)
Keyphrases
- spread spectrum
- frequency hopping
- instantaneous frequency
- frequency modulation
- image watermarking
- multiple access
- data hiding
- transform domain
- fourier transform
- ofdm system
- frequency domain
- low frequency
- bit error rate
- watermarking scheme
- digital watermarking
- watermarking algorithm
- amplitude modulation
- error correction
- signal processing
- direct sequence spread spectrum