2007 search results - page 12 / 402 » SPECTRUM |
INFOCOM
2009
IEEE
14 years 3 months ago
2009
IEEE
—Cognitive radio has been proposed in recent years to promote the spectrum utilization by exploiting the existence of spectrum holes. The heterogeneity of both spectrum availabil...
CCECE
2006
IEEE
14 years 5 days ago
2006
IEEE
The past decade has seen extensive research on audio classification and segmentation algorithms. However, the effect of background noise on the performance of classification has n...
GLOBECOM
2009
IEEE
14 years 3 months ago
2009
IEEE
—In this paper, we model and analyze the interactions between secondary users in a spectrum overlay cognitive system as a cognitive MAC game. In this game, each secondary user ca...
CSL
2007
Springer
13 years 8 months ago
2007
Springer
In this paper, we consider the topic of iterative, one dimensional, signal reconstruction (specifically speech signals) from the magnitude spectrum and the phase spectrum. While ...
SPEECH
2011
13 years 3 months ago
2011
Typical speech enhancement methods, based on the short-time Fourier analysis-modification-synthesis (AMS) framework, modify only the magnitude spectrum and keep the phase spectru...