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Joint Optimization of Pico-Base-Station Density and Transmit Power for an Energy-Efficient Heterogeneous Cellular Network

Author

Listed:
  • Jie Yang

    (Department of Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Ziyu Pan

    (Department of Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Hengfei Xu

    (Department of Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Han Hu

    (Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Post & Telecommunications, Nanjing 210023, China)

Abstract

Heterogeneous cellular networks (HCNs) have emerged as the primary solution for explosive data traffic. However, an increase in the number of base stations (BSs) inevitably leads to an increase in energy consumption. Energy efficiency (EE) has become a focal point in HCNs. In this paper, we apply tools from stochastic geometry to investigate and optimize the energy efficiency (EE) for a two-tier HCN. The average achievable transmission rate and the total power consumption of all the BSs in a two-tier HCN is derived, and then the EE is formulated. In order to maximize EE, a one-dimensional optimization algorithm is used to optimize picocell BS density and transmit power. Based on this, an alternating optimization method aimed at maximizing EE is proposed to jointly optimize transmit power and density of picocell BSs. Simulation results validate the accuracy of the theoretical analysis and demonstrate that the proposed joint optimization method can obviously improve EE.

Suggested Citation

  • Jie Yang & Ziyu Pan & Hengfei Xu & Han Hu, 2019. "Joint Optimization of Pico-Base-Station Density and Transmit Power for an Energy-Efficient Heterogeneous Cellular Network," Future Internet, MDPI, vol. 11(10), pages 1-11, September.
    • Handle: RePEc:gam:jftint:v:11:y:2019:i:10:p:208-:d:271463
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    Citations

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    Cited by:

    1. Yonghong Chen & Lei Xun & Shibing Zhang, 2023. "The Energy Efficiency of Heterogeneous Cellular Networks Based on the Poisson Hole Process," Future Internet, MDPI, vol. 15(2), pages 1-16, January.
    2. Shornalatha Euttamarajah & Yin Hoe Ng & Chee Keong Tan, 2021. "Energy-Efficient Joint Base Station Switching and Power Allocation for Smart Grid Based Hybrid-Powered CoMP-Enabled HetNet," Future Internet, MDPI, vol. 13(8), pages 1-22, August.

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