RIS-aided joint localization and synchronization with a single-antenna mmwave receiver
Paper i proceeding, 2021

MmWave multiple-input single-output (MISO) systems using a single-antenna receiver are regarded as a promising solution for the near future, before the full-fledged 5G MIMO will be widespread. However, for MISO systems synchronization cannot be performed jointly with user localization unless two-way transmissions are used. In this paper we show that thanks to the use of a reconfigurable intelligent surface (RIS), joint localization and synchronization is possible with only downlink MISO transmissions. The direct maximum likelihood (ML) estimator for the position and clock offset is derived. To obtain a good initialization for the ML optimization, a decoupled, relaxed estimator of position and delays is also devised, which does not require knowledge of the clock offset. Results show that the proposed approach attains the Cramér-Rao lower bound even for moderate values of the system parameters.

MmWave

Reconfigurable intelligent surface

Localization

Synchronization

5G

Författare

Alessio Fascista

Universita del Salento

Angelo Coluccia

Universita del Salento

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

G. Seco-Granados

Universitat Autonoma de Barcelona (UAB)

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

15206149 (ISSN)

Vol. 2021-June 4455-4459

2021 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2021
Virtual, Toronto, Canada,

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/ICASSP39728.2021.9413515

Mer information

Senast uppdaterat

2021-09-28