Integrated Communications and Localization for Massive MIMO LEO Satellite Systems
Journal article, 2024
Integrated communications and localization (ICAL) will play an important part in future sixth generation (6G) networks for the realization of Internet of Everything (IoE) to support both global communications and seamless localization. Massive multiple-input multiple-output (MIMO) low earth orbit (LEO) satellite systems have great potential in providing wide coverage with enhanced gains, and thus are strong candidates for realizing ubiquitous ICAL. In this paper, we develop a wideband massive MIMO LEO satellite system to simultaneously support wireless communications and localization operations in the downlink. In particular, we first characterize the signal propagation properties and derive a localization performance bound. Based on these analyses, we focus on the hybrid analog/digital precoding design to achieve high communication capability and localization precision. Numerical results demonstrate that the proposed ICAL scheme supports both the wireless communication and localization operations for typical system setups.
LEO satellite
Low earth orbit satellites
Integrated communications and localization
Satellites
squared position error bound
6G
Location awareness
non-geostationary satellite
Downlink
Massive MIMO
hybrid precoding
Satellite broadcasting
massive MIMO
Precoding
Author
Li You
Southeast University
Xiaoyu Qiang
Southeast University
Yongxiang Zhu
Southeast University
Fan Jiang
Peng Cheng Laboratory
Christos G. Tsinos
University of Athens
Wenjin Wang
Southeast University
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
X. Gao
Southeast University
Björn E. Ottersten
University of Luxembourg
IEEE Transactions on Wireless Communications
15361276 (ISSN) 15582248 (eISSN)
Vol. 23 9 11061-11075Areas of Advance
Information and Communication Technology
Subject Categories (SSIF 2011)
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/TWC.2024.3378305