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AuthorBadawy, Ahmed
AuthorKhattab, Tamer
Available date2022-10-31T19:21:55Z
Publication Date2013
Publication NameIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings
ResourceScopus
URIhttp://dx.doi.org/10.1109/PACRIM.2013.6625481
URIhttp://hdl.handle.net/10576/35654
AbstractCognitive radio networks require an efficient and reliable method of sensing the spectrum. In this paper, we introduce and implement a new dual mode spectrum sensing technique that is based on combining Quickest Detection with Energy Detection. Our dual mode system introduces a compromise between speed and complexity. When the SNR goes below the SNR wall for the low complexity energy detection, our system switches to the more expensive quickest detection based algorithm. A practical prototype of our system is implemented on the WARP FPGA-based nodes to study its efficiency and complexity. In addition to practical experimental results, we derive theoretical closed form expressions for the probability of false alarm and the probability of detection for our new approach. We also numerically compute the SNR wall for our quickest detection based technique. 2013 IEEE.
Languageen
SubjectDual mode system
Energy detection
FPGA implementation
Quickest detection
Spectrum sensing
TitleEfficient FPGA-based implementation of a novel dual mode spectrum sensing technique
TypeConference Paper
Pagination237-241
dc.accessType Abstract Only


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