• Lei Jiao
Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC)


With the rapid development of modern communication systems and electronics technologies, spectrum utilization becomes more and more flexible and dynamic. Traditionally, a traffic flow is sent within one communication channel. With the help of channel aggregation (CA) technology, it is possible to adopt multiple channels for transmitting one flow, while the channel fragmentation (CF) technology can help divide one channel into multiple segments in order to transmit multiple flows. Studies on CA and CF and their relevant topics are numerous. To indicate the amount of the studies, we searched channel aggregation as the keyword in IEEE Xplore, on January 20th, 2019, and found 1256 relevant articles. In this chapter, we introduce the principle of CA and CF, and the concepts that are similar to them. We also provide an incomplete survey of these techniques with the main focus on cognitive radio networks (CRNs).


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Copyright information

© The Author(s), under exclusive license to Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Lei Jiao
    • 1
  1. 1.The Department of Information and Communication TechnologyUniversity of AgderGrimstadNorway

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