Robust beamforming and power allocation in cognitive radio relay networks with imperfect channel state information.
S. MohammadkhaniMohammad Hossein KahaeiSeyed Mohammadreza RazavizadehPublished in: IET Commun. (2014)
Keyphrases
- multiple input multiple output
- power allocation
- cognitive radio
- cognitive radio networks
- spectrum sensing
- channel state information
- mimo systems
- cellular networks
- base station
- wireless communication
- communication systems
- wireless networks
- bit error rate
- resource allocation
- multi hop
- wireless channels
- user centric
- fading channels
- key technologies
- vlsi architecture
- wireless sensor networks
- multiple input
- communication networks
- low complexity
- computer networks
- mobile users