Overlay/Underlay Waveform Design for Enhancing Spectrum Efficiency in Cognitive Radio

Authors

Vasu Chakravarthy
Zhiqiang Wu, Wright State University - Main CampusFollow
Michael Temple

Document Type

Book Chapter

Publication Date

2011

Identifier/URL

42416677 (Pure)

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Catalog Record

Abstract

In this chapter, we presented a novel soft decision cognitive radio and dynamic spectrum access paradigm which exploits not only the unused spectrum holes, but also the underused spectrum bands to maximize performance and channel capacity for secondary cognitive users. We reviewed commonly used multi-carrier based enabling waveforms for cognitive radio. We then extended the SMSE framework to generate such overlay, underlay, and hybrid overlay/underlay waveforms to support the soft decision cognitive radio. Performance analysis and simulation results over AWGN and fading channels were then presented to confirm the performance gain of the novel system.

Repository Citation

Chakravarthy, V., Wu, Z., & Temple, M. (2011). Overlay/Underlay Waveform Design for Enhancing Spectrum Efficiency in Cognitive Radio. Principles of Waveform Diversity and Design, 1064-1083.
https://corescholar.libraries.wright.edu/ee/224

DOI

10.1049/SBRA023E_ch71