Future wireless cellular networks will utilize millimeter wave and sub-THz frequencies and deploy small-cell base stations to achieve data rates on the order of hundreds of Gigabits per second per user. The move to sub-THz frequencies will require attention to sustainability and reduction of power whenever possible to reduce the carbon footprint while maintaining adequate battery life for the massive number of resource-constrained devices to be deployed. This article analyzes power consumption of future wireless networks using a new metric, the power waste factor ($ W $), which shows promise for the study and development of "green G" - green technology for future wireless networks. Using $ W $, power efficiency can be considered by quantifying the power wasted by all devices on a signal path in a cascade. We then show that the consumption efficiency factor ($CEF$), defined as the ratio of the maximum data rate achieved to the total power consumed, is a novel and powerful measure of power efficiency that shows less energy per bit is expended as the cell size shrinks and carrier frequency and channel bandwidth increase. Our findings offer a standard approach to calculating and comparing power consumption and energy efficiency.
翻译:未来无线蜂窝网络将使用毫米波和亚THZ频率,并部署小细胞基站,以达到每用户每秒几百千Gigabits/秒的数据率。移动到亚Hiz频率将需要注意可持续性和尽可能减少电力,以减少碳足迹,同时为即将部署的大量资源受限制的设备维持足够的电池寿命。本文章用新的指标,即电耗系数(W美元)分析未来无线网络的电力消耗量,显示对研究和开发“绿色G”-绿色技术的未来无线网络的前景。用W美元计算所有设备在级联信号路径上浪费的电量,可以考虑电效率。然后我们表明,消费效率系数(CEF$)被定义为实现的最大数据率与总耗电量的比率,是衡量电力效率的新而有力的尺度,显示随着细胞大小收缩、承运人频率和频道带宽度的增加,每小时消耗的能源较少。我们的调查结果为计算和比较电力消耗量和能源效率提供了标准方法。