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ws 15(3): e5

Research Article

Cognitive Relay Networks: A Comprehensive Survey

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  • @ARTICLE{10.4108/ws.2015.3.e5,
        author={Ayesha  Naeem and Mubashir Husain  Rehmani},
        title={Cognitive Relay Networks: A Comprehensive Survey},
        journal={EAI Endorsed Transactions on Wireless Spectrum},
        volume={1},
        number={3},
        publisher={ICST},
        journal_a={WS},
        year={2015},
        month={7},
        keywords={Cognitive radio network, Cognitive relay network},
        doi={10.4108/ws.2015.3.e5}
    }
    
  • Ayesha Naeem
    Mubashir Husain Rehmani
    Year: 2015
    Cognitive Relay Networks: A Comprehensive Survey
    WS
    ICST
    DOI: 10.4108/ws.2015.3.e5
Ayesha Naeem1, Mubashir Husain Rehmani2,*
  • 1: Military Colleg e of Signals, NUST, Pakistan
  • 2: COMSATS Institute of Inf orma tion Technol ogy, Wah Cantt, Pakistan
*Contact email: mshrehmani@gmail.com

Abstract

Cognitive radio is an emerging technology to deal with the scarcity and requirement of radio spectrum by dynamically assigning spectrum to unlicensed user . This revolutionary technology shifts the paradigm in the wireless system design by all owing unlicensed user the ability to sense, adapt and share the dynamic spectrum. Cognitive radio technology have been applied to different networks and applications ranging from wireless to public saf ety, smart grid, medical, rela y and cellular applications to increase the throughput and spectrum efficiency of the network. Among these applications, cognitive relay networks is one of the application where cognitive radio technology has been applied. Cognitiv e rela y network increases the network throughput by reducing the complete pa th loss and also by ensuring cooper ation among secondary users and cooperation among primary and secondary users. In this paper , our aim is to provide a survey on cognitive relay network. We also provide a detailed review on existing schemes in cognitive relay networks on the basis of relaying protocol, relay cooperation and channel model.

Keywords
Cognitive radio network, Cognitive relay network
Received
2015-06-20
Accepted
2015-06-25
Published
2015-07-16
Publisher
ICST
http://dx.doi.org/10.4108/ws.2015.3.e5

Copyright © 2015 M. H. Rehmani and A. Naeem, licensed to ICST. This is an open access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.

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