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ICASSP
2009
IEEE
16 years 1 months ago
Modelling the prepausal lengthening effect for speech recognition: a dynamic Bayesian network approach
Speech has a property that the speech unit preceding a speech pause tends to lengthen. This work presents the use of a dynamic Bayesian network to model the prepausal lengthening ...
Ning Ma, Chris Bartels, Jeff A. Bilmes, Phil Green
ICASSP
2009
IEEE
16 years 1 months ago
Adaptive distributed transforms for irregularly sampled Wireless Sensor Networks
We develop energy-efficient, adaptive distributed transforms for data gathering in wireless sensor networks. In particular, we consider a class of unidirectional transforms that ...
Godwin Shen, Sunil K. Narang, Antonio Ortega
ICASSP
2009
IEEE
16 years 1 months ago
Semi-definite programming approach to sensor network node localization with anchor position uncertainty
The problem of node localization in a wireless sensor network (WSN) with the use of the incomplete and noisy distance measurements between nodes as well as anchor position informa...
Kenneth Wing-Kin Lui, Wing-Kin Ma, Hing-Cheung So,...
ICASSP
2009
IEEE
16 years 1 months ago
A multiplicative weight perturbation scheme for distributed beamforming in wireless relay networks with 1-bit feedback
This paper focuses on perturbation-based distributed beamforming with 1-bit feedback for wireless amplify-and-forward relay networks. We propose to use multiplicative perturbation...
Peter Fertl, Ari Hottinen, Gerald Matz
ICASSP
2008
IEEE
16 years 1 months ago
Position location by time reversal in communication networks
— Multipath effects are significant in urban or indoor communications. Current position location techniques such as TDOA suffer from multipath effects, which reduces the estimat...
Yuanwei Jin, Nicholas O'Donoughue, José M. ...