Title
A Communication-Aware Mutual Information Measure for Distributed Autonomous Robotic Information Gathering
Abstract
This letter investigates the computation of information measures for distributed communication-aware information gathering by robotic sensor networks. The mutual information between an unknown target state and measurements received over a lossy network is derived in order to combine sensing and communication into a single objective function that can be optimized by the robot sensor network. Communication is modeled as a packet erasure channel, leading to a formulation of the mutual information that scales exponentially in the number of agents and time horizon. Several approximations to reduce this computational complexity are introduced and evaluated. Further, sample-based methods are introduced in order to derive approximate solutions of the mutual information when the system is nonlinear and uncertainties have non-Gaussian distributions. Finally, the information measure is evaluated through simulation experiments of multiple aerial robots tracking stationary radio emitters.
Year
DOI
Venue
2019
10.1109/LRA.2019.2924850
IEEE Robotics and Automation Letters
Keywords
Field
DocType
Multi-robot systems,distributed robot systems,networked robots
Time horizon,Lossy compression,Packet erasure channel,Control engineering,Real-time computing,Mutual information,Engineering,Robot,Wireless sensor network,Computation,Computational complexity theory
Journal
Volume
Issue
ISSN
4
4
2377-3766
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Sang-Woo Moon11309.69
Eric W. Frew218226.73