CHARLES: Channel-quality-adaptive over-the-air federated learning over wireless networks

J Mao, H Yang, P Qiu, J Liu… - 2022 IEEE 23rd …, 2022 - ieeexplore.ieee.org
… (channelquality-aware over-the-air local estimating and scaling). Our CHARLES algorithm
performs channel … scaling to mitigate the impacts of wireless channel fading. We establish the …

Channel modeling and over-the-air signal quality at 3.5 GHz for 5G new radio

EI Adegoke, E Kampert, MD Higgins - IEEE Access, 2021 - ieeexplore.ieee.org
… In this article, 5G NR signals are used to evaluate the over-the-air (OTA) error vector
magnitude (EVM) within a line-of-sight (LoS) rural/urban environment. For the same receiver …

Optimized power control for over-the-air computation in fading channels

X Cao, G Zhu, J Xu, K Huang - IEEE Transactions on Wireless …, 2020 - ieeexplore.ieee.org
… To tackle the challenge, we first consider the special case with static channels, for which we
… product of the channel quality and power budget for each device, called quality indicator, …

Over-the-air computation with imperfect channel state information

Y Chen, G Zhu, J Xu - 2022 IEEE 23rd International Workshop …, 2022 - ieeexplore.ieee.org
… (CSI) on the over-the-air computation (AirComp) system, in … By particularly considering the
channel estimation errors, we … at the AP, in which a high-quality solution is obtained based on …

Gradient and channel aware dynamic scheduling for over-the-air computation in federated edge learning systems

J Du, B Jiang, C Jiang, Y Shi… - IEEE Journal on Selected …, 2023 - ieeexplore.ieee.org
… data aggregation and model learning, overthe-air computation (AirComp) is emerging as
a … of wireless channels. However, the fading and noise of wireless channels can cause …

Over-the-air computation in OFDM systems with imperfect channel state information

Y Chen, H Xing, J Xu, L Xu, S Cui - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
over-the-air computation (AirComp) in an orthogonal frequency division multiplexing (OFDM)
system with imperfect channel … computation outage probability over the multiple subcarriers…

Over-the-air computing under adaptive channel state estimation

NG Evgenidis, VK Papanikolaou… - … on Wireless and …, 2022 - ieeexplore.ieee.org
… , data aggregation through over-the-air computing (AirComp) … transmitted waveforms over
the multiple access channel (MAC… presence of a Gaussian multiple access channel (MAC) with …

Channel and Gradient-Importance Aware Device Scheduling for Over-the-Air Federated Learning

Y Sun, Z Lin, Y Mao, S Jin… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
… framework for overthe-air FL, named PO-FL, to mitigate the negative impact of channel
noise… Based on the convergence analysis, we further develop a channel and gradient-importance …

Deep learning based over-the-air channel estimation using a ZYNQ SDR platform

B Banerjee, Z Khan, JJ Lehtomäki, M Juntti - IEEE Access, 2022 - ieeexplore.ieee.org
… test over-the-air (OTA) deep learning driven channel estimation … deep learning driven channel
estimation platform which … deep learning solution for wireless channel estimators. To this …

Channel modelling for multiprobe overtheair MIMO testing

P Kyösti, T Jämsä, JP Nuutinen - International Journal of …, 2012 - Wiley Online Library
over-the-air (OTA) test setup for multiple-input-multiple-output (MIMO) capable terminals with
emphasis on channel … chamber requires unconventional radio channel modelling, namely, …