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Dynamic-Double-Threshold Energy Detection Scheme under Noise Varying Environment in Cognitive Radio System

International Journal of Computer Applications
© 2014 by IJCA Journal
Volume 87 - Number 14
Year of Publication: 2014
Sonam Shrivastava
Ravi Tiwari
Susmita Das

Sonam Shrivastava, Ravi Tiwari and Susmita Das. Article: Dynamic-Double-Threshold Energy Detection Scheme under Noise Varying Environment in Cognitive Radio System. International Journal of Computer Applications 87(14):23-27, February 2014. Full text available. BibTeX

	author = {Sonam Shrivastava and Ravi Tiwari and Susmita Das},
	title = {Article: Dynamic-Double-Threshold Energy Detection Scheme under Noise Varying Environment in Cognitive Radio System},
	journal = {International Journal of Computer Applications},
	year = {2014},
	volume = {87},
	number = {14},
	pages = {23-27},
	month = {February},
	note = {Full text available}


In cognitive radio, spectrum sensing is a key component for securing the licensed terminal from interference and detects the white spectrum hole to improve the spectrum efficiency. In the existing techniques, the noise uncertainty was either not considered or only detrimental effects are mitigated without much performance improvement. Therefore, a novel dynamic-double-threshold energy detection scheme is proposed under noise uncertainty, and its performance has been studied. Simulation analysis and results show that the proposed scheme improves the performance of detection for smaller values of false alarm probability. It is also found that the detection probability is reached at a satisfactory level, even under varying noise uncertainty.


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