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Abstract

This paper studies a joint precoder and fronthaul compression design for full-duplex (FD) miltiple-input-multiple-output (MIMO) cloud radio access networks (CRANs). A cloud control unit (CU) communicates with multiple downlink and uplink users through FD radio units (RUs) connected to the CU through fronthaul links which are limited capacity. We address the energy efficiency (EE) maximization problem subject to the transmit power constraints at each RU, each user and the limited capacity of fronthaul links. Since the formulated design problem is a highly non-convex problem in design variables, we exploit a successive convex approximation (SCA) method to obtain the concave lower bound of the achievable sum rate and a convex upper bound of limited capacity fronthaul link functions. Then, we apply the Dinkelbach method to develop an efficient iterative algorithm guaranteeing convergence in which the convex optimization problems are solved. Numerical results are provided to investigate the EE of the proposed algorithm.



Author's Affiliation
  • Tien Ngoc Ha

    Google Scholar Pubmed

  • Xuan-Xinh Nguyen

    Google Scholar Pubmed

  • Hoang Kha Ha

    Email I'd for correspondance: hhkha@hcmut.edu.vn
    Google Scholar Pubmed

Article Details

Issue: Vol 3 No 3 (2020)
Page No.: 488-499
Published: Dec 20, 2020
Section: Research article
DOI: https://doi.org/10.32508/stdjet.v3i3.685

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Ha, T. N., Nguyen, X.-X., & Ha, H. K. (2020). Energy Efficiency Maximization for Full Duplex MIMO Cloud Radio Access Networks. Science & Technology Development Journal - Engineering and Technology, 3(3), 488-499. https://doi.org/https://doi.org/10.32508/stdjet.v3i3.685

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