计算机科学 ›› 2019, Vol. 46 ›› Issue (8): 127-132.doi: 10.11896/j.issn.1002-137X.2019.08.021
方旭愿, 田红心, 孙德春, 杜文丛, 祁婷
FANG Xu-yuan, TIAN Hong-xin, SUN De-chun, DU Wen-cong, QI Ting
摘要： 在5 G移动通信网络中,大量采用绿色和电网能源混合供电的通信基站可以显著降低运营成本。针对异构网络混合能源供电基站的用户接入问题,文中提出了基于绿色能源感知的综合效用函数接入算法(Green Energy Perception Comprehensive utility function,GEPC)和结合调节的综合效用函数接入算法(Green Energy Perception based Comprehensive unility function Adjustment algorithm,GEPCA)。用户首先根据基站的绿色能源状况、接入信噪比等接入选择参数加权计算出效用值,选择效用值最小的基站接入,用户接入基站后,通过基站对接入用户进行调节来实现降低总能耗费用的效果。MATLAB仿真表明:GEPC算法在低负载时相比于RSRP (基于用户接收信号强度)、SINR(基于用户最大信干噪比)算法可以更有效地降低总能量消耗费用;在高负载时GEPCA算法和NEAT(绿色能源用户感知接入)算法相比显著提高了绿色能源的利用率,使之达到90%,同时有利于实现异构网络的负载均衡。
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