Cognitive radio with relay of a primary signal and piggyback modulation.
Jun NaganawaTakaya YamazatoMasaaki KatayamaPublished in: PIMRC (2009)
Keyphrases
- cognitive radio
- spectrum sensing
- signal detection
- received signal
- base station
- cognitive radio networks
- wireless communication
- orthogonal frequency division multiplexing
- amplitude modulation
- modulation scheme
- cooperative spectrum sensing
- wireless networks
- power control
- frequency modulation
- communication systems
- multi hop
- key technologies
- cellular networks
- wireless sensor networks
- ofdm system
- signal to noise ratio
- high frequency
- wireless mesh networks
- fading channels
- data transmission
- frequency domain
- lightweight
- data management