454 search results - page 5 / 91 » Simulation Spectrum and Stability Models |
INFOCOM
2010
IEEE
13 years 7 months ago
2010
IEEE
Abstract—Spectrum sensing is one of the key enabling technologies in Cognitive Radio Networks (CRNs). In CRNs, secondary users (SUs) are allowed to exploit the spectrum opportuni...
ICASSP
2011
IEEE
13 years 21 days ago
2011
IEEE
In cognitive radio (CR) networks, multi-CR cooperation typically takes place during spectrum sensing, to cope with wireless fading effects and the hidden terminal problem. The use...
MONET
2007
13 years 8 months ago
2007
Abstract For an indoor ultra-wideband (UWB) communication system, the line-of-sight (LOS) between the transmitter and receiver may be frequently blocked by moving people. Blocking ...
ICASSP
2008
IEEE
14 years 3 months ago
2008
IEEE
We propose new algorithms for estimating autoregressive (AR), moving average (MA), and ARMA models in the spectral domain. These algorithms are derived from a maximum likelihood a...
MOBIHOC
2007
ACM
14 years 8 months ago
2007
ACM
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...