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Insense: Incoherent Sensor Selection for Sparse Signals

Citation Author(s):
Amirali Aghazadeh; Mohammad Golbabaee; Andrew Lan; Richard Baraniuk
Submitted by:
Amirali Aghazadeh
Last updated:
12 April 2018 - 8:24pm
Document Type:
Poster
Document Year:
2018
Event:
Presenters:
Amirali Aghazadeh
Paper Code:
1150
 

Sensor selection refers to the problem of intelligently selecting a small subset of a collection of available sensors to reduce the sensing cost while preserving signal acquisition performance. The majority of sensor selection algorithms find the subset of sensors that best recovers an arbitrary signal from a number of linear measurements that is larger than the dimension of the signal. In this paper, we develop a new sensor selection algorithm for sparse (or near sparse) signals that finds a subset of sensors that best recovers such signals from a number of measurements that is much smaller than the dimension of the signal. Existing sensor selection algorithms cannot be applied in such situations. Our proposed Incoherent Sensor Selection (Insense) algorithm minimizes a coherence-based cost function that is adapted from recent results in sparse recovery theory. Using three datasets, including a real-world dataset on microbial diagnostics, we demonstrate the superior performance of Insense for sparse-signal sensor selection.

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