Green IT: Technologies and Applications
This book is the first of its kind in presenting comprehensive technical issues and solutions for rapidly growing Green IT. It brings together in a single volume both green communications and green computing under the theme of Green IT, and presents
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Jae H. Kim and Myung J. Lee (Eds.)
Green IT: Technologies and Applications
ABC
Editors Dr. Jae H. Kim Boeing Research & Technology The Boeing Company P.O. Box 3707 MC 7L-49 Seattle, WA 98124-2207 USA E-mail: [email protected]
Prof. Myung J. Lee City University of New York Department of Electrical Engineering Convent Avenue at 140th Street New York, NY 10031 USA E-mail: [email protected]
ISBN 978-3-642-22178-1
e-ISBN 978-3-642-22179-8
DOI 10.1007/978-3-642-22179-8 Library of Congress Control Number: 2011931538 c 2011 Springer-Verlag Berlin Heidelberg This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Typeset & Cover Design: Scientific Publishing Services Pvt. Ltd., Chennai, India. Printed on acid-free paper 987654321 springer.com
Preface
As the world’s economy and population ever expands, the question of sustainable growth comes to the foreground of matters regarding energy. Even with advanced technologies, the exploration of non-renewable sources struggles with its cost and engendered environmental impacts, such as carbon emission and ecological danger. A variety of environmentally and socially responsible and economically viable solutions to energy has recently emerged, addressing energy conservation and renewable sources. The energy conservation or “greening effort” has focused on the efficient use of electricity at home and industry and fuel-efficient transportation, attaining certain fruition. It is only recently that the energy expenditure of the IT sector has received attention on both the corporate and federal levels, due to the explosive growth of Internet and mobile communications. Currently, the number of PCs worldwide will surpass 2 billion units by 2014 (Gartner) and more than half of the world population will own mobile phones. The transition of user traffic toward data-intensive video contributes tremendously to the rise of IT traffic, which requires the use of powerful IT systems for high-capacity user devices, wired and wireless networks, and data centres. These high-capacity IT systems in turn call for high energy expenditure; therefore, the issue of green IT is brought forth. The IT sector is unique in that IT is part of the problem but at the same time a key to the solution. In many sectors, quantu
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