Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Richard C. Reinhart"'
Publikováno v:
IEEE Spectrum. 57:44-50
Space seems empty and therefore the perfect environment for radio communications. Don't let that fool you: There's still plenty that can disrupt radio communications. Earth's fluctuating ionosphere can impair a link between a satellite and a ground s
Autor:
Richard C. Reinhart, Paulo Victor R. Ferreira, Sven G. Bilén, Alexander M. Wyglinski, Dale J. Mortensen, Timothy M. Hackett, Randy Paffenroth
Publikováno v:
IEEE Communications Magazine. 57:70-75
The National Aeronautics and Space Administration (NASA) is in the midst of defining and developing the future space and ground architecture for the coming decades to return science and exploration discovery data back to investigators on Earth. Optim
Autor:
Dale J. Mortensen, Timothy M. Hackett, Richard C. Reinhart, Paulo Victor R. Ferreira, Alexander M. Wyglinski, Sven G. Bilén
Publikováno v:
IEEE Transactions on Cognitive Communications and Networking. 4:825-842
Cognitive algorithms for communications systems have been presented in literature, but very few have been integrated into a fielded system, especially space communications systems. In this paper, we describe the implementation of a multi-objective re
Autor:
Dale J. Mortensen, Richard C. Reinhart, Paulo Victor R. Ferreira, Alexander M. Wyglinski, Timothy M. Hackett, Randy Paffenroth, Sven G. Bilén
Publikováno v:
IEEE Journal on Selected Areas in Communications. 36:1030-1041
Future spacecraft communication subsystems will potentially benefit from software-defined radios controlled by artificial intelligence algorithms. In this paper, we propose a novel radio resource allocation algorithm leveraging multiobjective reinfor
Publikováno v:
2018 SpaceOps Conference.
The traditional paradigm for space mission operations relies on inefficient, highly scripted pre-planned activities between space communications and navigation service providers and user ground mission operations centers. Typically there is limited o
Multi-objective reinforcement learning-based deep neural networks for cognitive space communications
Autor:
Dale J. Mortensen, Randy Paffenroth, Alexander M. Wyglinski, Sven G. Bilén, Richard C. Reinhart, Timothy M. Hackett, Paulo Victor R. Ferreira
Publikováno v:
2017 Cognitive Communications for Aerospace Applications Workshop (CCAA).
Future communication subsystems of space exploration missions can potentially benefit from software-defined radios (SDRs) controlled by machine learning algorithms. In this paper, we propose a novel hybrid radio resource allocation management control
Autor:
Sven G. Bilén, Paulo Victor R. Ferreira, Richard C. Reinhart, Timothy M. Hackett, Alexander M. Wyglinski
Publikováno v:
2017 Cognitive Communications for Aerospace Applications Workshop (CCAA).
Although communications-based cognitive engines have been proposed, very few have been implemented in a full system, especially in a space communications system. In this paper, we detail the implementation of a multi-objective reinforcement-learning
Publikováno v:
IEEE Aerospace and Electronic Systems Magazine. 28:4-15
The NASA SCaN Test Bed flight experiment payload aboard ISS will enable experimenters the unique opportunity to investigate SDRs, navigation, and networking in the space environment. Comprised of three SDRs from industry partners, CoNNeCT allows expe
Autor:
Dale J. Mortensen, Sven G. Bilén, Paulo Victor R. Ferreira, Alexander M. Wyglinski, Randy Paffenroth, Richard C. Reinhart, Timothy M. Hackett
Publikováno v:
34th AIAA International Communications Satellite Systems Conference.
Previous research on cognitive radios has addressed the performance of various machine-learning and optimization techniques for decision making of terrestrial link properties. In this paper, we present our recent investigations with respect to reinfo
Autor:
Timothy M. Hackett, Paulo Victor R. Ferreira, Richard C. Reinhart, Sven G. Bilén, Alexander M. Wyglinski
Publikováno v:
34th AIAA International Communications Satellite Systems Conference.
In a communications channel, the space environment between a spacecraft and an Earth ground station can potentially cause the loss of a data link or at least degrade its performance due to atmospheric effects, shadowing, multipath, or other impairmen