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JSAC
2008
125views more  JSAC 2008»
13 years 4 months ago
Optimal Competitive Algorithms for Opportunistic Spectrum Access
We consider opportunistic spectrum access (OSA) strategies for a transmitter in a multichannel wireless system, where a channel may or may not be available and the transmitter must...
Nicholas B. Chang, Mingyan Liu
ISM
2005
IEEE
133views Multimedia» more  ISM 2005»
13 years 10 months ago
Image Based Tracking of News Stories
Broadcasters often reuse video clips while reporting news stories. New clips are added to the story as it develops replacing old clips. A subset of these video clips may be replay...
Jedrzej Z. Miadowicz, John M. Gauch, Abhishek Shiv...
PAMI
2008
206views more  PAMI 2008»
13 years 4 months ago
Robust Real-Time Unusual Event Detection using Multiple Fixed-Location Monitors
We present a novel algorithm for detection of certain types of unusual events. The algorithm is based on multiple local monitors which collect low-level statistics. Each local moni...
Amit Adam, Ehud Rivlin, Ilan Shimshoni, David Rein...
ICC
2007
IEEE
13 years 10 months ago
Low-Complexity EM-based Joint CFO and IQ imbalance Acquisition
—New air interfaces are currently being developed to meet the high spectral efficiency requirements of the emerging wireless communication systems. In this context, OFDM is cons...
François Horlin, André Bourdoux, Edu...
ICASSP
2009
IEEE
13 years 11 months ago
Two microphone based direction of arrival estimation for multiple speech sources using spectral properties of speech
A two microphone direction of arrival (DOA) estimation technique for multiple speech sources is developed which exploits speech specific properties, namely sparsity in time-frequ...
Wenyi Zhang, Bhaskar D. Rao