@conference {VazquezValcarceICASSP11,
	title = {Detection diversity of multiantenna spectrum sensors},
	booktitle = {IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP 2011)},
	year = {2011},
	month = {05/2011},
	pages = {2936-2939},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Prague, Czech Republic},
	abstract = {<div>In the context of spectrum sensing, we investigate the performance\&nbsp;of detectors equipped with M antennas (co-located or\&nbsp;distributed) under Rayleigh fading, in terms of detection diversity.\&nbsp;Rather than the high-SNR concept of diversity order\&nbsp;common in the communications literature, we adopt the notion\&nbsp;recently advocated by Daher and Adve in the radar community:\&nbsp;the slope of the average probability of detection (\bar{P}_D)\&nbsp;vs. SNR curve at \bar{P}_D = 0.5. This definition is well suited to\&nbsp;spectrum sensing, which invariably deals with low SNR levels.\&nbsp;It is shown that the diversity order grows as M for an\&nbsp;optimal centralized detector having access to all observations,\&nbsp;whereas for the two distributed schemes considered (the multiantenna\&nbsp;energy detector and the OR detector) it grows no\&nbsp;faster than √M.</div>},
	keywords = {cognitive radio, detection diversity, spectrum sensing},
	author = {Gonzalo V{\'a}zquez-Vilar and R. L{\'o}pez-Valcarce and Ashish Pandharipande}
}
