Spectrum Sensing for Cognitive Radios With Unknown Noise Variance and Time-variant Fading Channels.
Shenghong LiMengwei SunYing-Chang LiangBin LiChenglin ZhaoPublished in: IEEE Access (2017)
Keyphrases
- cognitive radio
- fading channels
- wireless communication
- noise variance
- spectrum sensing
- cognitive radio networks
- noisy images
- wireless networks
- regularization parameter
- noise level
- channel estimation
- computer simulation
- correlation coefficient
- communication networks
- wireless sensor networks
- wireless channels
- communication systems
- gaussian noise
- multipath
- ofdm system
- wifi
- bit error rate
- image denoising
- cellular networks
- multi hop
- image restoration
- key technologies