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5G green cellular networks considering power allocation schemes

基于功率分配的5G绿色蜂窝网络

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.

创新点

本文提出一种基于MIMO随机蜂窝网的能量效率评估模型,进而依托该模型分析了平均功率分配和注水分配方案下的蜂窝网能量效率,并给出了能效所能达到的最优仿真结果。上述研究成果对于优化多天线蜂窝网能效设计具有一定的价值。

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Correspondence to Jing Zhang.

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Cite this article

Ge, X., Chen, J., Wang, C. et al. 5G green cellular networks considering power allocation schemes. Sci. China Inf. Sci. 59, 1–14 (2016). https://doi.org/10.1007/s11432-015-5502-8

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Keywords

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

Keywords

  • 022308

关键词

  • 能量效率
  • 蜂窝网络
  • MIMO
  • 可达速率模型
  • 功率分配方案