Results 71 to 80 of about 45,671 (180)

Multi-User MIMO with outdated CSI: Training, Feedback and Scheduling

, 2011
Conventional MU-MIMO techniques, e.g. Linear Zero-Forced Beamforming (LZFB), require sufficiently accurate channel state information at the transmitter (CSIT) in order to realize spectral efficient transmission (degree of freedom gains).
Adhikary, Ansuman, Caire, Giuseppe, Papadopoulos, Haralabos C., Ramprashad, Sean A.   +3 more
core   +1 more source

Performance evaluation of regional weather predictions with the Model for Prediction Across Scales – Atmosphere (MPAS‐A) over the Maritime Continent

Quarterly Journal of the Royal Meteorological Society, EarlyView.
As part of the ongoing efforts to develop next‐generation forecasting systems at the Meteorological Service Singapore, this study presents the setup and evaluation of the SINGV_NG(MPAS) system. Overall, the SINGV_NG(MPAS) system outperforms European Centre for Medium‐Range Weather Forecasts (ECMWF) deterministic forecasts in capturing heavy rainfall ...
I‐Han Chen, Pratiman Patel, Kalli Furtado, Wei Wang, Zhiquan Liu, Dale Barker, Jimy Dudhia, Hugh Zhang   +7 more
wiley   +1 more source

Interference Coordination via Power Domain Channel Estimation

, 2017
A novel technique is proposed which enables each transmitter to acquire global channel state information (CSI) from the sole knowledge of individual received signal power measurements, which makes dedicated feedback or inter-transmitter signaling ...
Lasaulce, Samson, Varma, Vineeth, Visoz, Raphael, Zhang, Chao   +3 more
core   +3 more sources

A Novel CSI Feedback Approach for Massive MIMO Using LSTM-Attention CNN

IEEE Access, 2020
In this paper, a novel mechanism is studied to improve the performance of the channel state information (CSI) feedback in massive multiple-input multiple-output (MIMO) systems.
Qi Li, Aihua Zhang, Pengcheng Liu, Jianjun Li, Chunlei Li   +4 more
doaj   +1 more source

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño, Alejandro Palacio‐Betancur, Piedad Miranda‐Chiquito, Juan David Amaya, Christian E. Silva, Mariantonieta Gutierrez Soto, Luis Felipe Giraldo   +6 more
wiley   +1 more source

A Probability‐Aware AI Framework for Reliable Anti‐Jamming Communication

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Adversarial jamming attacks have increased on communication systems, causing distortion and threatening transmissions. Typical attacks rely on traditional, well‐defined cryptographic protocols and frequency‐hopping techniques. Nevertheless, these techniques become vulnerable when facing intelligent jammers.
Tawfeeq Shawly, Ahmed A. Alsheikhy
wiley   +1 more source

Perturbation-based Distributed Beamforming for Wireless Relay Networks

, 2008
This paper deals with distributed beamforming techniques for wireless networks with half-duplex amplify-and-forward relays. Existing schemes optimize the beamforming weights based on the assumption that channel state information (CSI) is available at the
Fertl, Peter, Hottinen, Ari, Matz, Gerald   +2 more
core   +1 more source

A Unified Machine Learning Model for Relapse Prediction in Clinical Stage I Testicular Cancer

Andrology, EarlyView.
ABSTRACT Background Approximately one‐fourth of patients with clinical stage I testicular cancer relapse. For decades, risk stratification has been based on different tumor characteristics for seminomas and non‐seminomas. Previous studies primarily used Cox proportional‐hazards models and included only a limited number of variables.
Thomas Wagner, Ramtin Zargari Marandi, Jakob Lauritsen, Daniel Dawson Murray, Mikkel Bandak, Birgitte Grønkær Toft, Dan Berney, Gedske Daugaard   +7 more
wiley   +1 more source

Cooperative Precoding with Limited Feedback for MIMO Interference Channels

, 2012
Multi-antenna precoding effectively mitigates the interference in wireless networks. However, the resultant performance gains can be significantly compromised in practice if the precoder design fails to account for the inaccuracy in the channel state ...
Huang, Kaibin, Zhang, Rui
core   +1 more source

Consensus‐based follow‐up and treatment registry for GNAO1‐associated disorder

Developmental Medicine &Child Neurology, EarlyView.
Abstract Aim To establish consensus‐based recommendations on relevant domains of functioning and assessment instruments for an GNAO1‐associated disorder follow‐up and treatment registry. Method This was a mixed‐methods study consisting of a systematic literature search, a survey, and a real‐time Delphi procedure to achieve consensus on domains and ...
Larissa R. Heideman, Nicole I. Wolf, Moritz Thiel, Jolanda H. Schieving, Chris De Kruiff, Suzanne van den Bos, Eva Van Heeringen‐Broekhuizen, J. Jasper Deuring, Annemieke I. Buizer, Laura A. Van De Pol   +9 more
wiley   +1 more source