cell-free massive MIMO; integrated sensing and communication; mobile unmanned aerial vehicle; tethered unmanned aerial vehicle; Aerial vehicle; Cell-free; Cell-free massive MIMO; Integrated sensing; Integrated sensing and communication; Mobile unmanned aerial vehicles; Multiple inputs; Multiple outputs; Performance; Tethered unmanned aerial vehicle; Computer Networks and Communications; Electrical and Electronic Engineering
Abstract :
[en] The employment of unmanned aerial vehicles (UAVs) aligned with multistatic sensing in integrated sensing and communication (ISAC) systems can provide remarkable performance gains in sensing, by taking advantage of the cell-free massive multiple-input multiple-output (mMIMO) architecture. Under these considerations, in this paper, the achievable sensing signal-to-noise-plus-interference ratio (SINR) of a cell-free mMIMO ISAC UAV-based network is evaluated for two different deployments of UAVs, namely, mobile and tethered. In both scenarios, a transmit precoder that jointly optimizes the sensing and communication requirements subjected to power constraints is designed. Specifically, for the scenario with mobile UAVs, beyond the transmit precoding, we also optimize the position of the transmit UAVs through particle swarm optimization (PSO). The results show that, although tethered UAVs have a more efficient power allocation, the proposed position control algorithm for the mobile UAVs can achieve a superior gain in terms of sensing SINR.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM - Signal Processing & Communications Centre for Wireless Communications - University of Oulu
Disciplines :
Electrical & electronics engineering
Author, co-author :
FLORES CABEZAS, Xavier Alejandro ✱; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom ; Centre for Wireless Communications (CWC), University of Oulu, Finland
Da Silva, Isabella W.G. ✱; Centre for Wireless Communications (CWC), University of Oulu, Finland ; Centre for Wireless Innovation (CWI), Queen's University Belfast, United Kingdom
Juntti, Markku; Centre for Wireless Communications (CWC), University of Oulu, Finland
✱ These authors have contributed equally to this work.
External co-authors :
yes
Language :
English
Title :
Performance of UAV-based Cell-free mMIMO ISAC Networks: Tethered vs. Mobile
Publication date :
20 August 2024
Event name :
ICC 2024 - IEEE International Conference on Communications
Event place :
Denver, Usa
Event date :
09-06-2024 => 13-06-2024
Audience :
International
Main work title :
ICC 2024 - IEEE International Conference on Communications
Editor :
Valenti, Matthew
Publisher :
Institute of Electrical and Electronics Engineers Inc.
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