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Proactive Channel Access in Dynamic Spectrum Work-in-Progress

Summary: Proactive Channel Access in Dynamic Spectrum
Lei Yang, Lili Cao and Haitao Zheng
Department of Computer Science
University of California, Santa Barbara, CA 93106 U.S.A
Email: {leiyang, lilicao, htzheng }@cs.ucsb.edu
Abstract--Open Spectrum systems allow fast deployment of
wireless technologies by reusing under-utilized pre-allocated
spectrum channels, all with minimal impact on existing primary
users. However, existing proposals take a reactive sense-and-
avoid approach to impulsively reconfigure spectrum usage based
solely on the latest observations. This can result in frequent
disruptions to operations of both primary and secondary users.
In this paper, we propose a proactive spectrum access approach
where secondary users utilize past channel histories to make
predictions on future spectrum availability, and intelligently
schedule channel usage in advance. We propose two channel
selection and switching techniques to minimize disruptions to
primary users and maintain reliable communication at secondary


Source: Almeroth, Kevin C. - Department of Computer Science, University of California at Santa Barbara


Collections: Computer Technologies and Information Sciences