Abstract
In this chapter, we define system model addressed in this book that is composed of several primary licensed networks collocated with a single distributed cognitive radio network. In such a system model, we discuss the unsolved Opportunistic Spectrum Access challenges to be addressed in the consequent chapters. Namely, the inability of current spectrum sensing schemes to accurately assess the spectral opportunities based only on the local interference measurements and the multi-flow coordination problem in such a distributed CRN model. Finally, we motivate our work and formulate the open spectrum sensing and sharing problems to be addressed in the remainder of the book.
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Notes
- 1.
A PRN can be licensed to use multiple contiguous or non-contiguous bands. However, our generalized assumption of a different PRN per band can be easily extended to capture such situations by dividing such a multi-band PRN into multiple virtual PRNs.
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Khattab, A., Perkins, D., Bayoumi, M. (2013). Opportunistic Spectrum Access Challenges in Distributed Cognitive Radio Networks. In: Cognitive Radio Networks. Analog Circuits and Signal Processing. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4033-8_4
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DOI: https://doi.org/10.1007/978-1-4614-4033-8_4
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