2007 search results - page 50 / 402 » SPECTRUM |
115
Voted
TWC
2010
14 years 7 months ago
2010
In this paper, we consider the problem of spectrum sensing by using multiple antenna in cognitive radios when the noise and the primary user signal are assumed as independent compl...
110
Voted
AINA
2011
IEEE
14 years 4 months ago
2011
IEEE
— Next generation wireless networks will be heterogeneous, where several primary users (PU e.g. licensed users) and secondary users (SU e.g. unlicensed users) can operate in the ...
115
Voted
ICC
2011
IEEE
14 years 5 days ago
2011
IEEE
—Femtocells have been considered by the wireless industry as a promising solution not only to improve indoor coverage, but also to unload traffic from already overburdened macroc...
108
click to vote
TON
2012
13 years 3 months ago
2012
—Cognitive Radio (CR) technology has great potential to alleviate spectrum scarcity in wireless communications. It allows secondary users (SUs) to opportunistically access spectr...
82
Voted
ICIP
2005
IEEE
16 years 2 months ago
2005
IEEE
This paper presents novel techniques for detecting watermarks in images in a known-cover attack framework using natural scene models. Specifically, we consider a class of watermar...