Low-Complexity OTFS-Based Over-the-Air Computation Design for Time-Varying Channels

X Huang, H Hellström, C Fischione - arXiv preprint arXiv:2405.07040, 2024 - arxiv.org
This paper investigates over-the-air computation (AirComp) over multiple-access time-
varying channels, where devices with high mobility transmit their sensing data to a fusion …

Interference Cancellation for OTFS-Based Over-the-Air Computation

X Huang, H Hellstrom, C Fischione - arXiv preprint arXiv:2403.11272, 2024 - arxiv.org
This paper investigates over-the-air computation (AirComp) in the context of multiple-access
time-varying multipath channels. We focus on a scenario where devices with high mobility …

Optimal Receive Filter Design for Misaligned Over-the-Air Computation

H Hellström, S Razavikia, V Fodor… - arXiv preprint arXiv …, 2023 - arxiv.org
Over-the-air computation (OAC) is a promising wireless communication method for
aggregating data from many devices in dense wireless networks. The fundamental idea of …

OTFS-based Robust MMSE Precoding Design in Over-the-air Computation

D Zhou, J Guo, S Wang, Z Zheng, Z Fei… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Over-the-air computation (AirComp), as a data aggregation method that can improve
network efficiency by exploiting the superposition characteristics of wireless channels, has …

Performance analysis of UAV-enabled over-the-air computation under imperfect channel estimation

H Jung, SW Ko - IEEE Wireless Communications Letters, 2021 - ieeexplore.ieee.org
Over-the-air computation (AirComp) is a powerful technique to combine data collected from
an enormous number of nodes with limited bandwidth availability. When unmanned aerial …

Double-RIS assisted over-the-air computation

J Li, M Fu, Y Zhou, Y Shi - 2021 IEEE Globecom Workshops …, 2021 - ieeexplore.ieee.org
Over-the-air computation (AirComp) is a promising multiple-access scheme that seamlessly
integrates the computation and communication by leveraging the waveform superposition …

Unbiased over-the-air computation via retransmissions

H Hellstrom, V Fodor… - GLOBECOM 2022-2022 …, 2022 - ieeexplore.ieee.org
Over-the-air computation (AirComp) has recently emerged as an efficient analog method for
data acquisition from wireless sensor devices. In essence, AirComp exploits the signal …

Bayesian over-the-air computation

Y Shao, D Gündüz, SC Liew - IEEE Journal on Selected Areas …, 2022 - ieeexplore.ieee.org
As an important piece of the multi-tier computing architecture for future wireless networks,
over-the-air computation (OAC) enables efficient function computation in multiple-access …

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 …

Optimal power control for over-the-air computation

X Cao, G Zhu, J Xu, K Huang - 2019 IEEE Global …, 2019 - ieeexplore.ieee.org
Over-the-air computation (AirComp) of a function (eg, averaging) has recently emerged as
an efficient multi-access scheme for fast aggregation of distributed data at devices (eg …