On the Energy Detection of Unknown Signals Over Fading Channels

This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-form expressions for the probability of detection to those recently reported in the literature. Detection capability is boos...

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Veröffentlicht in:	IEEE transactions on communications 2007-01, Vol.55 (1), p.21-24
Hauptverfasser:	Digham, F.F., Alouini, M.-S., Simon, M.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Additive white noise Applied sciences AWGN Channels Closed-form solution Detection, estimation, filtering, equalization, prediction Detectors Diffraction, scattering, reflection Diversity reception Diversity schemes energy detection Exact sciences and technology Exact solutions Fading fading channels Gaussian noise Information, signal and communications theory low-power applications Mathematical analysis Radiocommunications Radiowave propagation Rayleigh channels Signal and communications theory Signal detection Signal processing Signal, noise square-law detector Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) unknown signal detection
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Beschreibung
Zusammenfassung:	This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-form expressions for the probability of detection to those recently reported in the literature. Detection capability is boosted by implementing both square-law combining and square-law selection diversity schemes
ISSN:	0090-6778 1558-0857
DOI:	10.1109/TCOMM.2006.887483