摘要
天线下倾角对蜂窝网络的小区间干扰和天线增益有很大的影响,是影响蜂窝网络能效的主要因素之一。给出了蜂窝网络能效函数的定义,描述了系统模型和能效算法。通过仿真的方式,研究了在不同的下倾方式、基站间距、基站高度和基站天线垂直面半功率宽度(HPBW)的条件下,LTE蜂窝网络能效与总下倾角的关系。
Antenna tilt is one of the most important factors affecting energy efficiency of a cellular network,since it has a strong impact on the inter-cell interference and antenna gain. In this paper,a definition of energy efficiency function is proposed first, then the system performance model and the algorithm of energy efficiency are described. By system simulations,the relationship between antenna tilt and energy efficiency of LTE cellular network is studied with different tilt types,inter-site distances,base station antenna heights and base station antenna HPBW.
出处
《无线电工程》
2013年第10期40-42,54,共4页
Radio Engineering
关键词
天线下倾角
能效函数
机械下倾
电调下倾
antenna tilt
energy efficiency function
electrical tilting
mechanical tilting
