Back to Search
Start Over
SISO RIS-Enabled Joint 3D Downlink Localization and Synchronization
- Source :
- ICC, ICC 2021-IEEE International Conference on Communications, IEEE International Conference on Communications (15503607)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- We consider the problem of joint three-dimensional localization and synchronization for a single-input single-output (SISO) system in the presence of a reconfigurable intelligent surface (RIS), equipped with a uniform planar array. First, we derive the Cram\'er-Rao bounds (CRBs) on the estimation error of the channel parameters, namely, the angle-of-departure (AOD), composed of azimuth and elevation, from RIS to the user equipment (UE) and times-of-arrival (TOAs) for the path from the base station (BS) to UE and BS-RIS-UE reflection. In order to avoid high-dimensional search over the parameter space, we devise a low-complexity estimation algorithm that performs two 1D searches over the TOAs and one 2D search over the AODs. Simulation results demonstrate that the considered RIS-aided wireless system can provide submeter-level positioning and synchronization accuracy, materializing the positioning capability of Beyond 5G networks even with single-antenna BS and UE. Furthermore, the proposed estimator is shown to attain the CRB at a wide interval of distances between UE and RIS. Finally, we also investigate the scaling of the position error bound with the number of RIS elements.<br />Comment: Submitted to ICC 2021
- Subjects :
- Signal Processing (eess.SP)
FOS: Computer and information sciences
Computer science
Computer Science - Information Theory
02 engineering and technology
01 natural sciences
localization
Synchronization
Reconfigurable intelligent surface
Base station
0103 physical sciences
Telecommunications link
FOS: Electrical engineering, electronic engineering, information engineering
Wireless
Electrical Engineering and Systems Science - Signal Processing
010302 applied physics
business.industry
Wireless network
Information Theory (cs.IT)
Communication Systems
Estimator
021001 nanoscience & nanotechnology
User equipment
Signal Processing
Telecommunications
0210 nano-technology
business
Algorithm
Cramér–Rao bound
position error bound
Cramér-Rao bound
Subjects
Details
- ISBN :
- 978-1-72817-122-7
- ISBNs :
- 9781728171227
- Database :
- OpenAIRE
- Journal :
- ICC 2021 - IEEE International Conference on Communications
- Accession number :
- edsair.doi.dedup.....cad878e463eb29e55cd5f80de68c4d8f