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CDC
2010
IEEE
119views Control Systems» more  CDC 2010»
14 years 4 months ago
Event-triggered output feedback control of finite horizon discrete-time multi-dimensional linear processes
Event-triggered control systems are systems in which the control signal is recomputed when the plant's output signal leaves a triggering-set. There has been recent interest in...
Lichun Li, Michael Lemmon
ICASSP
2011
IEEE
14 years 1 months ago
Robust secondary multicast transmit beamforming for cognitive radio networks under imperfect channel state information
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...
BILDMED
2011
225views Algorithms» more  BILDMED 2011»
14 years 1 months ago
Using Power Watersheds to Segment Benign Thyroid Nodules in Ultrasound Image Data
Thyroid nodule segmentation is a hard task due to different echo structures, textures and echogenicities in ultrasound (US) images as well as speckle noise. Currently, a typical c...
Eva N. K. Kollorz, Elli Angelopoulou, Michael Beck...
COCOON
2011
Springer
13 years 9 months ago
Finding Paths with Minimum Shared Edges
Motivated by a security problem in geographic information systems, we study the following graph theoretical problem: given a graph G, two special nodes s and t in G, and a number k...
Masoud T. Omran, Jörg-Rüdiger Sack, Hami...
TSP
2012
13 years 5 months ago
Robust Multicast Beamforming for Spectrum Sharing-Based Cognitive Radios
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...