Estimating the changing environmental impacts of ICT-based tasks: A top-down approach
Estimating the changing environmental impacts of ICT-based tasks: A top-down approach
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评估基于 ICT 的任务对环境影响的变化：自上而下的方法
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
H. Dowlatabadi
中科院分区：
文献类型：
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作者：
P. Teehan;M. Kandlikar;H. Dowlatabadi
我们开发了一种简单的方法，用于归因于环境的影响，在ICT设备上执行的任务，根据用户追求他们所花费的时间和他们所需要的网络带宽的量。我们使用广泛的任务类别，并确保所有任务的总影响增加到100%。使用公开的数据，我们开发了一个在美国的能源消耗的案例研究，并证明，到2015年，基于Web的视频将成为ICT能源消耗的主要驱动力，由于其非常高的带宽要求。我们的方法是有用的，在整个用户群的聚合行为的广泛趋势的识别。
We develop a simple method for attributing the environmental impacts of tasks performed on ICT devices according to the amount of time spent by the user pursuing them and the amount of network bandwidth they require. We use broad categories of tasks and ensure that the total impacts of all tasks add to 100%. Using publicly available data, we develop a case study of energy consumption in the U.S. and demonstrate that by 2015 web-based video will become a dominant driver of ICT energy consumption, due to its very high bandwidth requirements. Our approach is useful for the identification of broad trends in the aggregate behavior of the entire user-base.