5G green cellular networks considering power allocation schemes

Xiaohu Ge, Jiaqi Chen, Cheng-Xiang Wang, John Thompson, Jing Zhang

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

It is important to assess the effect of transmit power allocation schemes on the energy consumption on random cellular networks. The energy efficiency of 5G green cellular networks with average and water-filling power allocation schemes is studied in this paper. Based on the proposed interference and achievable rate model, an energy efficiency model is proposed for MIMO random cellular networks. Furthermore, the energy efficiency with average and water-filling power allocation schemes are presented, respectively. Numerical results indicate that the maximum limits of energy efficiency are always there for MIMO random cellular networks with different intensity ratios of mobile stations (MSs) to base stations (BSs) and channel conditions. Compared with the average power allocation scheme, the water-filling scheme is shown to improve the energy efficiency of MIMO random cellular networks when channel state information (CSI) is attainable for both transmitters and receivers.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalScience China Information Sciences
Volume59
Issue number2
Early online date23 Dec 2015
DOIs
Publication statusPublished - Feb 2016

Keywords

  • achievable rate model
  • cellular networks
  • energy efficiency
  • MIMO
  • power allocation scheme

ASJC Scopus subject areas

  • Computer Science(all)

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