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Multiuser MIMO Cognitive Radio Systems

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Cognitive Radio, Mobile Communications and Wireless Networks

Part of the book series: EAI/Springer Innovations in Communication and Computing ((EAISICC))

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Abstract

Multiuser multiple-input multiple-output (MU-MIMO) cognitive radio (CR) systems can achieve higher spectral efficiency by multiplexing multiple users on the same time-frequency resources and allowing concurrent spectrum sharing instead of opportunistic sharing. MU-MIMO techniques have been successfully deployed in 4G cellular systems based on traditional static spectrum access approach, and a vast number of multiuser detection algorithms, such as maximum ratio combining (MRC), minimum mean-squared error (MMSE), and capacity-aware (CA) are presently being tailored toward solving the MIMO processing in cognitive networks, where additional constraints are imposed to protect licensed users’ QoS. The focus in this chapter is on concurrent CR networks based on CA MU-MIMO that maximizes the uplink MIMO channel capacity for each cognitive user while controlling the interference levels to licensed users. Two applications of CA MU-MIMO will be explored: cognitive radio-based wireless sensor networks (CR-WSNs) and cognitive small cells in heterogeneous networks (HetNets).

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Author information

Authors and Affiliations

  1. Royal Military College of Canada, Kingston, ON, Canada

    Mostafa Hefnawi

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  1. Mostafa Hefnawi
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Correspondence to Mostafa Hefnawi .

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Editors and Affiliations

  1. Telecommunications Software and Systems Group, Waterford Institute of Technology, Waterford, Ireland

    Mubashir Husain Rehmani

  2. National Polytechnic Institute of Toulouse, Toulouse, France

    Riadh Dhaou

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Hefnawi, M. (2019). Multiuser MIMO Cognitive Radio Systems. In: Rehmani, M., Dhaou, R. (eds) Cognitive Radio, Mobile Communications and Wireless Networks. EAI/Springer Innovations in Communication and Computing. Springer, Cham. https://doi.org/10.1007/978-3-319-91002-4_11

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  • DOI: https://doi.org/10.1007/978-3-319-91002-4_11

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-91001-7

  • Online ISBN: 978-3-319-91002-4

  • eBook Packages: EngineeringEngineering (R0)

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