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Device-free wireless localization (DFL) is a promising technique. It can localize and track a target without carrying any electronic device. Compared with traditional received signal strength (RSS)-based DFL, the recently proposed time-of-flight (TOF)-based DFL technique could achieve better performance. However, TOF-based DFL requires that each pair of nodes should perform a pairwise TOF measurement...
Energy and cooling cost is becoming the main cost of data centers. Many studies focused on how to schedule job and migrate Virtual Machine between servers to save energy. An accurate energy consumption model is the basic of energy management. Most past studies show that energy consumption has linear relation with resource utilization. We found that different servers have different energy consumption...
Energy cost becomes a major part of data center operational cost. Computer system consume more power when it runs under high workload. Many past studies focused on how to predict power consumption by performance counters. Some models retrieve performance counters from chips. Some models query performance counters from OS. Most of these researches were verified on several machines and claimed their...
Geographic routing is an attractive localized routing scheme for wireless sensor networks (WSNs). Most WSNs are consisted of nodes which are all limited in power, so how to employ a proper routing protocol to save energy consumption is a hot topic for research. In this paper, a balance-aware energy-efficient geographic routing protocol BEGR is proposed. Both energy consumption in communication and...
As enterprising customers are increasing storage capacity at the growth of 50% every year, the storage of energy become to be a urgent problem that the IT management facing. The researching energy consumption of network storage system architecture and establishing energy consumption model which relates to system expansion and workload is the key point to solve the problem of energy consumption. This...
This paper measures China's regional differences of carbon emissions based on Theil index methodology mainly, takes the contribution of inter-region and inner-region differences to total value into decomposition, compares the GDP-weighted Theil index and the one weighted on industrial added value, mainly focus on the impact of the level of economic development and industrialization on carbon emissions...
With the repaid development of multi-media and network, information are generated and spread quickly than before. The industry is expected to meet the needs by producing high performance CPU and high-density disk. But dramatic increase in energy requirements becomes a new challenging. Energy and human cost become the major parts of data center. More and more vendor provides efficiency products, such...
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