Search for: [Description = "This article review lessons learned from the uses of radio\-frequency \(RF\) spectrum at national and international scales. Its main purpose is to stimulate debate on how to allow new wireless systems to operate, and to reduce the chronic apparent shortage of RF spectrum. The article aims at a better understanding of the mechanisms behind spectrum management and their pertinence to the public interest. The main contributions if the article are\:• Considering RF spectrum management as a construct that structures radio services and, at the same time, distributes wealth and power\;• Highlighting major doctrines of RF spectrum management\;• Promoting spectrum management directly by its users\;• Promoting cooperation and transparency.The several parts of the paper include the evolution of spectrum exploitation, and a foreseeable future by taking a closer look at major dilemmas and challenges. The paper ends with general comments and conclusions."]

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