基于能量损耗与能源代价均衡的基站休眠机制

Base station sleep mechanism based on power consumption and energy cost balance

5G系统中的网络密集化使得网络节点数量更加庞大,导致无线通信系统能量损耗急剧增加,加重了运营商的经济负担,增加了CO_2的排放。基于此,从能量损耗和经济层面两方面着手,综合考虑了备选基站组数量及新能源基站相对位置等因素,建立了在智能电网环境下的综合无线系统能量损耗模型。提出了一种基于能量损耗与能源代价均衡的基站休眠算法,该算法依据能量损耗确定备选基站组并从中选择能源代价最小的一组作为激活基站,从而实现能量损耗与能源代价的折中。仿真结果表明,所提算法以提高少量能源损耗为代价,显著降低了系统的能源代价。

Deploying dense network in 5G system increases the number of nodes, which leads to a sharp increase in power consumption of wireless communication system, aggravates the economic burden of mobile network operator and exacerbates the emission of CO2. Therefore, considering the number of candidate base station （BS） group and the relative position of the BS supplied by new energy, a comprehensive power consumption model in wireless commu- nication system was investigated in terms of the power consumption and economical level. A base station sleep algo- rithm based on power consumption and energy cost balance was proposed to achieve a tradeoff between them, which selected candidate groups according to the corresponding power consumption and then determined the active group by choosing the cheapest ones. Simulation results show that the proposed algorithm can significantly reduce energy cost of communication bases system although it leads to a negligible increase in power consumption.