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Green Communications: Realizing Environmentally Friendly, Cost Effective, and Energy Efficient Wireless Systems
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Author(s): Haris I. Volos (Virginia Tech, USA), Dinesh Datla (Virginia Tech, USA), Xuetao Chen (Virginia Tech, USA), An He (Virginia Tech, USA), Ashwin Amanna (Virginia Tech, USA), Timothy R. Newman (University of Maryland, USA), S. M. Shajedul Hasan (Virginia Tech, USA), Jeffery H. Reed (Virginia Tech, USA)and Tamal Bose (Virginia Tech, USA)
Copyright: 2014
Pages: 22
Source title:
Sustainable Practices: Concepts, Methodologies, Tools, and Applications
Source Author(s)/Editor(s): Information Resources Management Association (USA)
DOI: 10.4018/978-1-4666-4852-4.ch028
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Abstract
The exponential growth of wireless systems makes their carbon footprint hard to ignore. This chapter presents statistics related to the energy consumption of cellular networks' infrastructure in order to motivate the need for more efficient and environmentally friendly communications. A definition of the term “Green Communications” is provided along with different metrics that can be used to quantify energy efficiency for the various aspects of wireless infrastructure. In addition to topics related to cellular infrastructure, the chapter presents a brief review of key techniques that can be potentially used for improving energy efficiency. Furthermore, since improving energy efficiency is not by itself sufficient for low-carbon systems, possible ways of using and managing energy harvested from renewable sources such as solar and ambient RF signals are discussed. Moreover, the concept of Wireless Distributed Computing is introduced to illustrate how a group of wireless devices can share their resources for achieving a set of common goals. Finally, resource allocation is examined for managing the trade-offs involved when simultaneously minimizing the carbon footprint and performing the necessary communication and computation tasks in mobile devices.
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