中国邮电高校学报(英文) ›› 2020, Vol. 27 ›› Issue (2): 19-25.doi: 10.19682/j.cnki.1005-8885.2020.1003

• Wireless • 上一篇    下一篇

Energy efficiency optimization for HCNs based on small base station transmission power allocation

Pan Ziyu, Hu Han   

  1. 1. Department of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China
    2. Jiangsu Provincial Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2019-02-24 修回日期:2020-05-12 出版日期:2020-04-30 发布日期:2020-07-07
  • 通讯作者: Pan Ziyu, E-mail: panziyu@njit.edu.cn E-mail:panziyu@njit.edu.cn
  • 作者简介:Pan Ziyu, E-mail: panziyu@njit.edu.cn
  • 基金资助:
    This work was supported by National Natural Science Foundation of China (61901211), Jiangsu Higher Education Institutions Natural Science Foundation (18KJB510017), Foundation of Nanjing Institute of Technology (ZKJ201801).

Energy efficiency optimization for HCNs based on small base station transmission power allocation

Pan Ziyu, Hu Han   

  1. 1. Department of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China
    2. Jiangsu Provincial Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2019-02-24 Revised:2020-05-12 Online:2020-04-30 Published:2020-07-07
  • Contact: Pan Ziyu, E-mail: panziyu@njit.edu.cn E-mail:panziyu@njit.edu.cn
  • About author:Pan Ziyu, E-mail: panziyu@njit.edu.cn
  • Supported by:
    This work was supported by National Natural Science Foundation of China (61901211), Jiangsu Higher Education Institutions Natural Science Foundation (18KJB510017), Foundation of Nanjing Institute of Technology (ZKJ201801).

摘要: In the research of green communication, considering the base station (BS) power allocation from the perspective of energy efficiency (EE) is meaningful for heterogeneous cellular networks (HCNs) optimization. The EE of two-tier HCNs was analyzed and a new method for the network EE optimization was proposed by adjusting the small BS transmitting power. First, the HCNs ware modeled by homogeneous Poisson point processes (PPPs), and the coverage probability of BSs in each tier was derived. Second, according to the definition of EE, and the closed-form of EE was given by deriving the total power consumption and total throughput of HCNs respectively. At last, the analytical performance of the EE of HCNs on the small BS transmission power was analyzed, and a small BS power optimization algorithm was proposed to maximize the EE. Simulation results show that, the transmission power of small BS has a significant impact on the EE of HCNs. Furthermore, by optimizing the transmission power of small BS, the EE of HCNs can be improved effectively.

关键词: heterogeneous cellular networks, EE, small BS, transmission power

Abstract: In the research of green communication, considering the base station (BS) power allocation from the perspective of energy efficiency (EE) is meaningful for heterogeneous cellular networks (HCNs) optimization. The EE of two-tier HCNs was analyzed and a new method for the network EE optimization was proposed by adjusting the small BS transmitting power. First, the HCNs ware modeled by homogeneous Poisson point processes (PPPs), and the coverage probability of BSs in each tier was derived. Second, according to the definition of EE, and the closed-form of EE was given by deriving the total power consumption and total throughput of HCNs respectively. At last, the analytical performance of the EE of HCNs on the small BS transmission power was analyzed, and a small BS power optimization algorithm was proposed to maximize the EE. Simulation results show that, the transmission power of small BS has a significant impact on the EE of HCNs. Furthermore, by optimizing the transmission power of small BS, the EE of HCNs can be improved effectively.

Key words: heterogeneous cellular networks, EE, small BS, transmission power