Keyphrases
- wireless systems
- cognitive radio
- spectrum sensing
- cognitive radio networks
- cooperative spectrum sensing
- wireless communication
- orthogonal frequency division multiplexing
- power control
- wireless access
- wireless networks
- cellular networks
- communication systems
- base station
- multiple input multiple output
- key technologies
- mimo systems
- physical layer
- channel conditions
- channel estimation
- ofdm system
- communication networks
- wireless channels
- wifi
- computer simulation
- information sources