Channel Estimation for RIS-Empowered Multi-User MISO Wireless Communications

Reconfigurable Intelligent Surfaces (RISs) have been recently considered as an energy-efficient solution for future wireless networks due to their fast and low-power configuration, which has increased potential in enabling massive connectivity and low-latency communications. Accurate and low-overhea...

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Veröffentlicht in:	IEEE transactions on communications 2021-06, Vol.69 (6), p.4144-4157
Hauptverfasser:	Wei, Li, Huang, Chongwen, Alexandropoulos, George C., Yuen, Chau, Zhang, Zhaoyang, Debbah, Merouane
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms approximate message passing Approximation algorithms Channel estimation Channels Communications systems Cramér-Rao bound Estimation Iterative methods Matrix decomposition Message passing MISO communication multi-user communication Network latency parallel factor decomposition reconfigurable intelligent surfaces Sparse matrices sum rate performance Uplink Wireless communications Wireless networks
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