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Performance of Power Allocation of Relay Stations for Cognitive Radio Based Cooperative Communication Systems

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Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS 2017)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 612))

Abstract

Cognitive radio (CR) allows unauthorized users to access authorized band without interfering the authorized user, thereby improving the bandwidth efficiency. In addition, cooperative communications with relay stations (RSs) can be used to improve throughput performance of 4G downlink network. In this study a cognitive radio assisted cooperation (CRAC), which combines advantages of CR and cooperative communications with RSs, is considered for resources allocation in the downlink orthogonal frequency division multiple access (OFDMA) networks. Two adaptive power allocation schemes, throughput based power allocation of RS (Thr-RS) and utility based power allocation of RS (Uti-RS) are presented. Simulation results demonstrate that the proposed Uti-RS allocation schemes can not only enhance throughput, but also improve fairness and utility of users for CRAC communication systems.

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Acknowledgments

This work is supported in part by the Ministry of Science and Technology under Grant No. MOST 104-2221-E-324-018 and MOST 103-2632-E-324-001-MY3.

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Authors and Affiliations

  1. Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung, Taiwan

    Yung-Fa Huang

  2. Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan

    Tan-Hsu Tan & Yu-Shing Lee

  3. Department of Computer Science and Information Engineering, Asia University, Taichung, Taiwan

    Hsing-Chung Chen

Authors
  1. Yung-Fa Huang
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  2. Tan-Hsu Tan
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  3. Yu-Shing Lee
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  4. Hsing-Chung Chen
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Corresponding author

Correspondence to Yung-Fa Huang .

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Editors and Affiliations

  1. Faculty of Information Engineering, Fukuoka Institute of Technology, Fukuoka, Japan

    Leonard Barolli

  2. Rissho University, Tokyo, Japan

    Tomoya Enokido

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Huang, YF., Tan, TH., Lee, YS., Chen, HC. (2018). Performance of Power Allocation of Relay Stations for Cognitive Radio Based Cooperative Communication Systems. In: Barolli, L., Enokido, T. (eds) Innovative Mobile and Internet Services in Ubiquitous Computing . IMIS 2017. Advances in Intelligent Systems and Computing, vol 612. Springer, Cham. https://doi.org/10.1007/978-3-319-61542-4_52

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  • DOI: https://doi.org/10.1007/978-3-319-61542-4_52

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-61541-7

  • Online ISBN: 978-3-319-61542-4

  • eBook Packages: EngineeringEngineering (R0)

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