期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2015
卷号：4
期号：5
页码：2088-2095
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Cloud computing focuses on maximizing the effectiveness of the shared resources. The cloud model enables customers to access, from any computer connected to the internet (whether a desktop PC or a mobile device), a multitude of IT services rather than being limited to using locally installed software and being dependent on the storage capacity of their local computer network. This model of IT service provision is one that is growing exponentially. It is estimated that one third of all revenue generated in the software market today relates to the delivery of cloud computing services, and that the value of the UK cloud computing market could reach around ¡ê10.5 billion in 2014, up from ¡ê6 billion in 2010. Clouds can be classified as public, private or hybrid. Cloud computing is come forth as a new prototype of large-scale distributed computing. It is a model for enabling convenient, on-demand network access to a shared pool of computing resources. As cloud computing becomes more widespread, however, the development demands of Cloud infrastructure has drastically increased the energy expenditure of data centers, which turn into a decisive issue. High energy expenditure not only translates to high functional cost, which reduces the net profit margin of Cloud providers, but also extends to high carbon emissions which cause environmental damage. Hence, it is mandatory to find energy-efficient solutions to minimize the affect of Cloud computing on the environment. This is happening at a time when there is increasing attention being paid to the need to manage energy consumption across the entire information and communications technology (ICT) sector. There has been less attention paid to the energy expenditure of the transmission and switching networks that are key to connecting users to the cloud. In this paper, we present an analysis of energy consumption in cloud computing and how we can minimize the carbon emission. The analysis considers both public and private clouds, and includes energy consumption in switching and transmission as well as data processing and data storage. We show that energy consumption in conveyance and switching can be a significant percentage of total energy consumption in cloud computing. Cloud computing can enable more energy-efficient use of computing power, especially when the computing tasks are of low intensity or infrequent.
关键词：Cloud computing; Energy efficiency; Green ; cloud computing; Energy consumption; public cloud; ; private cloud; hybrid cloud
