Energy Efficient Radio Access Architectures for Green Radio: Large versus Small Cell Size Deployment
Energy Efficient Radio Access Architectures for Green Radio: Large versus Small Cell Size Deployment
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DOI：
10.1109/vetecf.2009.5379035
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
B. Badic;Timothy O’Farrell;P. Loskot;Jianhua He
中科院分区：
文献类型：
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作者：
B. Badic;Timothy O’Farrell;P. Loskot;Jianhua He
在本文中，新的架构方法，提高蜂窝无线接入网络（RAN）的能源效率进行了研究。本文的目的是表征的能量消耗比（ECR）和能量消耗增益（ECG）的蜂窝RAN时，小区的大小是减少一个给定的用户密度和服务区域。该论文确认，减小小区大小如所期望地减小了小区ECR，同时增加了容量密度，但总体RAN能耗保持不变。为了在不降低小区容量供应的情况下用RAN能量消耗来交换容量密度的增加，引入了睡眠模式。在睡眠模式下，没有活跃用户的小区被断电，从而节省能量。通过将睡眠模式与小小区部署架构相结合，该论文表明，ECG可以增加因子n =（R/R），而小区ECR随着小区大小的减小而继续减小。
In this paper new architectural approaches that improve the energy efficiency of a cellular radio access network (RAN) are investigated. The aim of the paper is to characterize both the energy consumption ratio (ECR) and the energy consumption gain (ECG) of a cellular RAN when the cell size is reduced for a given user density and service area. The paper affirms that reducing the cell size reduces the cell ECR as desired while increasing the capacity density but the overall RAN energy consumption remains unchanged. In order to trade the increase in capacity density with RAN energy consumption, without degrading the cell capacity provision, a sleep mode is introduced. In sleep mode, cells without active users are powered-off, thereby saving energy. By combining a sleep mode with a small-cell deployment architecture, the paper shows that the ECG can be increased by the factor n = (R/R) while the cell ECR continues to decrease with decreasing cell size.