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ICASSP
2011
IEEE
7 years 11 months ago
Ordering for energy efficient estimation and optimization in sensor networks
A discretized version of a continuous optimization problem is considered for the case where data is obtained from a set of dispersed sensor nodes and the overall metric is a sum o...
Rick S. Blum
ICASSP
2011
IEEE
7 years 11 months ago
Two dimensional nested arrays on lattices
In this paper, we develop the theory of a new class of two dimensional arrays with sensors on lattice(s) which can be used to construct a virtual array of much larger size through...
Piya Pal, Palghat P. Vaidyanathan
ICASSP
2011
IEEE
7 years 11 months ago
Quantization and power allocation in wireless sensor networks with correlated data
Abstract— This work addresses the problem of joint quantization and power allocation in wireless sensor networks where sensors observe a source, quantize their observations and t...
Muhammad Hafeez Chaudhary, Luc Vandendorpe
ICASSP
2011
IEEE
7 years 11 months ago
Separating sources from sequentially acquired mixtures of heart signals
In this paper, we consider the problem of separating a set of independent components when only one movable sensor is available to record the mixtures. We propose to exploit the qu...
Fábio de Lima Hedayioglu, Maria G. Jafari, ...
CVPR
2011
IEEE
7 years 11 months ago
Wide-angle Micro Sensors for Vision on a Tight Budget
Achieving computer vision on micro-scale devices is a challenge. On these platforms, the power and mass constraints are severe enough for even the most common computations (matrix...
Sanjeev Koppal, Todd Zickler, Ioannis Gkioulekas
TWC
2010
8 years 1 months ago
Distributed consensus-based demodulation: algorithms and error analysis
This paper deals with distributed demodulation of space-time transmissions of a common message from a multiantenna access point (AP) to a wireless sensor network. Based on local me...
Hao Zhu, Alfonso Cano, Georgios B. Giannakis
TSP
2010
8 years 1 months ago
Channel energy based estimation of target trajectories using distributed sensors with low communication rate
Abstract--Sensor localization using channel energy measurements of distributed sensors has been studied in various scenarios. However, it is usually assumed that the target does no...
Christian R. Berger, Sora Choi, Shengli Zhou, Pete...
TSP
2010
8 years 1 months ago
Decentralized sparse signal recovery for compressive sleeping wireless sensor networks
Abstract--This paper develops an optimal decentralized algorithm for sparse signal recovery and demonstrates its application in monitoring localized phenomena using energy-constrai...
Qing Ling, Zhi Tian
TSP
2010
8 years 1 months ago
Optimal/near-optimal dimensionality reduction for distributed estimation in homogeneous and certain inhomogeneous scenarios
We consider distributed estimation of a deterministic vector parameter from noisy sensor observations in a wireless sensor network (WSN). The observation noise is assumed uncorrela...
Jun Fang, Hongbin Li
SIGKDD
2010
259views more  SIGKDD 2010»
8 years 1 months ago
Activity recognition using cell phone accelerometers
Mobile devices are becoming increasingly sophisticated and the latest generation of smart cell phones now incorporates many diverse and powerful sensors. These sensors include GPS...
Jennifer R. Kwapisz, Gary M. Weiss, Samuel Moore
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