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ICASSP
2009
IEEE
15 years 8 months ago
Shrinkage estimation of high dimensional covariance matrices
We address covariance estimation under mean-squared loss in the Gaussian setting. Specifically, we consider shrinkage methods which are suitable for high dimensional problems wit...
Yilun Chen, Ami Wiesel, Alfred O. Hero
IROS
2009
IEEE
229views Robotics» more  IROS 2009»
15 years 8 months ago
3D mapping for urban service robots
— We present an approach to the problem of 3D map building in urban settings for service robots, using threedimensional laser range scans as the main data input. Our system is ba...
Rafael Valencia, Ernesto Homar Teniente Avil&eacut...
WCNC
2008
IEEE
15 years 8 months ago
An Opportunistic Scheduling Scheme with Minimum Data-Rate Guarantees for OFDMA
Abstract—We tackle the problem of providing minimum datarate guarantees for different classes-of-service in an OFDMAbased network, while obtaining a high system throughput. Our a...
Razvan Pitic, Antonio Capone
DCOSS
2007
Springer
15 years 7 months ago
A Semantics-Based Middleware for Utilizing Heterogeneous Sensor Networks
With the proliferation of various kinds of sensor networks, we will see large amounts of heterogeneous data. They have different characteristics such as data content, formats, mod...
Eric Bouillet, Mark Feblowitz, Zhen Liu, Anand Ran...
ADHOCNOW
2006
Springer
15 years 7 months ago
ROAR: A Multi-rate Opportunistic AODV Routing Protocol for Wireless Ad-Hoc Networks
In this paper, we outline a simple approach, called ROAR, that enables the Ad-Hoc On-Demand Distance Vector (AODV) routing protocol to strengthen its routes by recruiting neighbors...
Kwan Wu Chin, Darryn Lowe