Integrated Communications and Localization for Massive MIMO LEO Satellite Systems
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| Title: | Integrated Communications and Localization for Massive MIMO LEO Satellite Systems |
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| Authors: | You, Li, Qiang, Xiaoyu, Zhu, Yongxiang, Jiang, Fan, 1987, Tsinos, Christos G., Wang, Wenjin, Wymeersch, Henk, 1976, Gao, X., Ottersten, Björn E. |
| Source: | IEEE Transactions on Wireless Communications. 23(9):11061-11075 |
| Subject Terms: | 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 |
| Description: | 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. |
| File Description: | electronic |
| Access URL: | https://research.chalmers.se/publication/540712 https://research.chalmers.se/publication/540712/file/540712_Fulltext.pdf |
| Database: | SwePub |
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Nájsť tento článok vo Web of Science | Abstract: | 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. |
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| ISSN: | 15582248 15361276 |
| DOI: | 10.1109/TWC.2024.3378305 |