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The Dynamics of Spectrum ManagementLegacy, Technology, and Economics$
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Rohit Prasad and Varadharajan Sridhar

Print publication date: 2014

Print ISBN-13: 9780198099789

Published to Oxford Scholarship Online: September 2014

DOI: 10.1093/acprof:oso/9780198099789.001.0001

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History and Technology of Spectrum

History and Technology of Spectrum

(p.1) 1 History and Technology of Spectrum
The Dynamics of Spectrum Management

Rohit Prasad

V. Sridhar

Oxford University Press

Radio, television, and cellular mobile phones have one thing in common—communicating over the air using radio waves. This chapter discusses radio communication—basics, history, and 2G to 4G technology evolution and the future, including a remark on the contributions of Jagadish Chandra Bose. The international and national frequency allocation methods for different uses are explained. The evolution of frequency assignments in different countries—the US, Europe, and India—are traced. Technology standards have played a major role in the adoption, which is explained. The problem of radio frequency interference is explained using the Titanic story. Concepts of frequency reuse are presented in simple terms. The Birth of Wi-Fi as the technology of the commons and its evolution is described. Further, technologies that enable federated and distributed small cells that integrate with macro and backhaul networks are highlighted. The principles behind flexible spectrum management including Cognitive Radio are mentioned.

Keywords:   Wi-Fi, Cognitive Radio, ITU, Jagadish Chandra Bose, Titanic, frequency reuse, Marconi, UWB, flexible spectrum use, microwave

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