Multiple-Satellite Cooperative Information Communication and Location Sensing in LEO Satellite Constellations
Qi Wang, Xiaoming Chen, Qiao Qi, Mili Li, Wolfgang Gerstacker

TL;DR
This paper proposes a dual-function LEO satellite constellation framework that simultaneously provides communication and location sensing services, optimizing resource use and performance through cooperative algorithms.
Contribution
It introduces a novel dual-function satellite framework and a cooperative algorithm that jointly optimize communication and sensing for enhanced performance.
Findings
Improved communication transmission rates.
Enhanced location sensing accuracy.
Demonstrated effectiveness through extensive simulations.
Abstract
Integrated sensing and communication (ISAC) and ubiquitous connectivity are two usage scenarios of sixth generation (6G) networks. In this context, low earth orbit (LEO) satellite constellations, as an important component of 6G networks, is expected to provide ISAC services across the globe. In this paper, we propose a novel dual-function LEO satellite constellation framework that realizes information communication for multiple user equipments (UEs) and location sensing for interested target simultaneously with the same hardware and spectrum. In order to improve both information transmission rate and location sensing accuracy within limited wireless resources under dynamic environment, we design a multiple-satellite cooperative information communication and location sensing algorithm by jointly optimizing communication beamforming and sensing waveform according to the characteristics of…
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