Automated spectrum trading mechanisms: understanding the big picture

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• 作者：Mario López-Martínez ; Juan J. Alcaraz ; Javier Vales-Alonso…
• 关键词：Cognitive radio ; Dynamic spectrum access (DSA) ; Spectrum trading ; Spectrum pricing ; Spectrum market ; Game theory
• 刊名：Wireless Networks
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：21
• 期：2
• 页码：685-708
• 全文大小：789 KB
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• 刊物类别：Computer Science
• 刊物主题：Computer Communication Networks
  Electronic and Computer Engineering
  Business Information Systems
  
• 出版者：Springer Netherlands
• ISSN：1572-8196

文摘

Public regulatory agencies have traditionally assigned radio-electric spectrum in a static way. This has led to an almost fully assigned but sparsely and unevenly used spectrum, in which it is becoming more difficult to accommodate the increasing demand of wireless communication. This work presents a general view of automated spectrum trading, one of the mechanisms proposed to improve spectrum efficiency. Licensed operators would be able to lease their unused bandwidth to unlicensed ones in secondary markets, satisfying real time demands from users. This results in a higher and more dynamic use of spectrum while providing incentives to spectrum owners for allowing secondary users to access their unused spectrum. Several approaches can be found in this research area combining game theory, economic models and auction design, among others. We describe and organize the main objectives and challenges of spectrum trading, and present a comprehensive classification and explanation of the existing research lines, showing how different works addressed each relevant issue, discussing the benefits and drawbacks of each approach. Finally, we highlight future research trends in this topic and identify critical but possibly overlooked problems.