Research Article
Adaptive Modulation in Multi-user Cognitive Radio Networks over Fading Channels
@INPROCEEDINGS{10.4108/icst.crowncom.2013.252053, author={Fotis Foukalas and Tamer Khattab and H. Vincent Poor}, title={Adaptive Modulation in Multi-user Cognitive Radio Networks over Fading Channels}, proceedings={8th International Conference on Cognitive Radio Oriented Wireless Networks}, publisher={ICST}, proceedings_a={CROWNCOM}, year={2013}, month={11}, keywords={adaptive modulation multi-user diversity cognitive radio nakagami-\textdollar{}m\textdollar{} fading channels}, doi={10.4108/icst.crowncom.2013.252053} }- Fotis Foukalas
Tamer Khattab
H. Vincent Poor
Year: 2013
Adaptive Modulation in Multi-user Cognitive Radio Networks over Fading Channels
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2013.252053
Abstract
In this paper, the performance of adaptive modulation in multi-user cognitive radio networks over fading channels is analyzed. Multi-user diversity is considered for opportunistic user selection among multiple secondary users. The analysis is obtained for Nakagami-$m$ fading channels. Both adaptive continuous rate and adaptive discrete rate schemes are analysed in opportunistic spectrum access and spectrum sharing. Numerical results are obtained and depicted to quantify the effects of multi-user fading environments on adaptive modulation operating in cognitive radio networks.
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