Cooperative cognitive spectrum sensing using optimized DFT filter banks.
Ubaid Ur RehmanDirk DahlhausThomas HunzikerPublished in: SCVT (2014)
Keyphrases
- filter bank
- cognitive radio
- spectrum sensing
- frequency domain
- cognitive radio networks
- subband
- image coding
- discrete cosine transform
- wireless communication
- multiresolution
- perfect reconstruction
- discrete fourier transform
- multiscale
- spatial domain
- communication systems
- signal processing
- base station
- computationally efficient
- fourier transform
- frequency band
- wavelet packet
- key technologies
- cellular networks
- wireless networks
- low pass
- lifting scheme
- wavelet coefficients
- low frequency
- bit rate
- finite impulse response
- wavelet filters
- reconstruction error
- wavelet domain
- building blocks
- wireless sensor networks
- high frequency