8th International Conference on Cognitive Radio Oriented Wireless Networks

Research Article

Adaptive Modulation in Multi-user Cognitive Radio Networks over Fading Channels

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  • @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
Fotis Foukalas1,*, Tamer Khattab1, H. Vincent Poor2
  • 1: Electrical Engineering, Qatar University
  • 2: Electrical Engineering, Princeton University
*Contact email: foukalas@qu.edu.qa

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.

Keywords
adaptive modulation multi-user diversity cognitive radio nakagami-$m$ fading channels
Published
2013-11-27
Publisher
ICST
http://dx.doi.org/10.4108/icst.crowncom.2013.252053
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