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GLOBECOM
2009
IEEE
14 years 22 days ago
A Probabilistic Approach to Identifying the Number of Frequency Hoppers for Spectrum Sensing
Characterizing the number and type of transmitters occupying a given frequency band is a critical aspect of spectrum sensing specifically and cognitive radio generally. We present ...
Yuxing Han, Shaunak Joshi, Lillian Dai, Danijela C...
CORR
2010
Springer
176views Education» more  CORR 2010»
13 years 6 months ago
Cooperative Distributed Sequential Spectrum Sensing
Abstract--We consider cooperative spectrum sensing for cognitive radios. We develop an energy efficient detector with low detection delay using sequential hypothesis testing. Seque...
Jithin K. S, Vinod Sharma, Raghav Gopalarathnam
ICASSP
2008
IEEE
14 years 3 months ago
Subspace compressive detection for sparse signals
The emerging theory of compressed sensing (CS) provides a universal signal detection approach for sparse signals at sub-Nyquist sampling rates. A small number of random projection...
Zhongmin Wang, Gonzalo R. Arce, Brian M. Sadler
CORR
2010
Springer
186views Education» more  CORR 2010»
13 years 9 months ago
Layered Label Propagation: A MultiResolution Coordinate-Free Ordering for Compressing Social Networks
We continue the line of research on graph compression started in [BV04], but we move our focus to the compression of social networks in a proper sense (e.g., LiveJournal): the app...
Paolo Boldi, Marco Rosa, Massimo Santini, Sebastia...
IPSN
2003
Springer
14 years 2 months ago
Source-Channel Communication in Sensor Networks
Sensors acquire data, and communicate this to an interested party. The arising coding problem is often split into two parts: First, the sensors compress their respective acquired s...
Michael Gastpar, Martin Vetterli