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ICASSP
2010
IEEE
15 years 5 months ago
Unidirectional graph-based wavelet transforms for efficient data gathering in sensor networks
We design lifting-based wavelet transforms for any arbitrary communication graph in a wireless sensor network (WSN). Since transmitting raw data bits along the routing trees in WS...
Sunil K. Narang, Godwin Shen, Antonio Ortega
MASS
2010
160views Communications» more  MASS 2010»
15 years 4 months ago
Dynamic operator replacement in sensor networks
We present an integrated approach for supporting in-network sensor data processing in dynamic and heterogeneous sensor networks. The concept relies on data stream processing techni...
Moritz Striibe, Michael Daum, Rüdiger Kapitza...
TON
2010
118views more  TON 2010»
15 years 1 months ago
Capacity Scaling of Wireless Networks With Inhomogeneous Node Density: Lower Bounds
Abstract-- We consider static ad hoc wireless networks comprising significant inhomogeneities in the node spatial distribution over the area, and analyze the scaling laws of their ...
Giusi Alfano, Michele Garetto, Emilio Leonardi, Va...
ICASSP
2011
IEEE
14 years 10 months ago
A regularization framework for mobile social network analysis
Mobile phone data provides rich dynamic information on human activities in social network analysis. In this paper, we represent data from two different modalities as a graph and f...
Xiaowen Dong, Pascal Frossard, Pierre Vandergheyns...
ICASSP
2011
IEEE
14 years 10 months ago
Convergence of a distributed parameter estimator for sensor networks with local averaging of the estimates
The paper addresses the convergence of a decentralized Robbins-Monro algorithm for networks of agents. This algorithm combines local stochastic approximation steps for finding th...
Pascal Bianchi, Gersende Fort, Walid Hachem, J&eac...