Beyond transmitting bits: Context, semantics, and task-oriented communications

D Gündüz, Z Qin, IE Aguerri, HS Dhillon… - IEEE Journal on …, 2022 - ieeexplore.ieee.org
Communication systems to date primarily aim at reliably communicating bit sequences.
Such an approach provides efficient engineering designs that are agnostic to the meanings …

Multi-slot over-the-air computation in fading channels

S Tang, P Popovski, C Zhang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
IoT systems typically involve separate data collection and processing, and face the
scalability issue when the number of nodes increases. For some tasks, only the result of data …

Over-the-air computation with multiple receivers: A space-time approach

Z Chen, Y Malitsky - IEEE Wireless Communications Letters, 2023 - ieeexplore.ieee.org
The emerging concept of Over-the-Air (OtA) computation has shown great potential for
achieving resource-efficient data aggregation across large wireless networks. However …

Reliable over-the-air computation by amplify-and-forward based relay

S Tang, H Yin, C Zhang, S Obana - IEEE Access, 2021 - ieeexplore.ieee.org
In typical sensor networks, data collection and processing are separated. A sink collects
data from all nodes sequentially, which is very time consuming. Over-the-air computation, as …

Fundamental limits of over-the-air optimization: Are analog schemes optimal?

SK Jha, P Mayekar, H Tyagi - IEEE Journal on Selected Areas …, 2022 - ieeexplore.ieee.org
We consider over-the-air convex optimization on a dimensional space where coded
gradients are sent over an additive Gaussian noise channel with variance. The codewords …

Miso: Misalignment Allowed Optimization for Multi-antenna Over-the-air Computation

S Tang, C Zhang, J Li, S Obana - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Over-the-air computation (AirComp), as an effective method to wireless data aggregation,
has attracted much attention recently. It helps to improve network efficiency and scalability …

Fisher information and mutual information constraints

LP Barnes, A Özgür - 2021 IEEE International Symposium on …, 2021 - ieeexplore.ieee.org
We consider the processing of statistical samples X∼P_θ by a channel p(y|x), and
characterize how the statistical information from the samples for estimating the parameter …

[HTML][HTML] Relay Selection for Over-the-Air Computation Achieving Both Long Lifetime and High Reliability

J Zhou, S Tang - Sensors, 2023 - mdpi.com
In a general wireless sensor network, a sink node collects data from each node successively
and then post-processes the data to obtain useful information. However, conventional …

Over-the-Air Computation Aided Federated Learning with the Aggregation of Normalized Gradient

R Fan, X An, S Zuo, H Hu - arXiv preprint arXiv:2308.09082, 2023 - arxiv.org
Over-the-air computation is a communication-efficient solution for federated learning (FL). In
such a system, iterative procedure is performed: Local gradient of private loss function is …

Lower bounds for over-the-air statistical estimation

CZ Lee, LP Barnes, A Özgür - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
We study lower bounds for minimax statistical estimation over a Gaussian multiple-access
channel (MAC) under squared error loss, using techniques from both statistical estimation …