Energy-aware heterogeneous access and sensor networks

最近的研究表明，今天互联网的耗电量大约是一个典型的OECD国家电力供应的0.3%。然而，随着宽带接入在大多数发达国家变得越来越普遍，如果平均接入速率上升到100Mb/S，互联网的电力消耗估计将上升到一个国家全国电力供应的7%以上，这相当于每年几个太瓦时的电力消耗、数百万美元的费用和数吨的碳排放。当前互联网的电力消耗很大程度上由其第一英里接入网络主导。结果表明，在典型的网络场景中，传输和核心网络约占总功耗的30%，而接入网络约占其余70%。

Recent studies show that the power consumption of today's Internet is around 0.3% of the electricity supply of a typical OECD country. However, as broadband access becomes increasingly commonplace in most developed countries, the power consumption of the Internet is estimated to rise to more than 7% of a country's national electricity supply for an average access rate rising to 100 Mb/s, which translates into a power consumption of several TWh and expenses of millions of dollars and tons of carbon gas emissions per year. The power consumption of the current Internet is largely dominated by its first-mile access networks. It was shown that in a typical network scenario, transport and core networks represent roughly 30% of the total power consumption, while access networks account for the remaining 70%.