A4 Article in conference proceedings
Joint Subcarrier and Phase Shifts Optimization for RIS-aided Localization-Communication System (2022)

Luan, M., Wang, B., Chang, Z., Hämäläinen, T., Ling, Z., & Hu, F. (2022). Joint Subcarrier and Phase Shifts Optimization for RIS-aided Localization-Communication System. In Proceedings of the 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring). IEEE. IEEE Vehicular Technology Conference. https://doi.org/10.1109/VTC2022-Spring54318.2022.9860587

JYU authors or editors

Publication details

All authors or editors: Luan, Mingan; Wang, Bo; Chang, Zheng; Hämäläinen, Timo; Ling, Zhuang; Hu, Fengye

Parent publication: Proceedings of the 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)

Place and date of conference: Helsinki, Finland, 19.-22.6.2022

ISBN: 978-1-6654-8244-8

eISBN: 978-1-6654-8243-1

Journal or series: IEEE Vehicular Technology Conference

ISSN: 1090-3038

eISSN: 2577-2465

Publication year: 2022

Publication date: 25/08/2022

Publisher: IEEE

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1109/VTC2022-Spring54318.2022.9860587

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/85194

Abstract

Joint localization and communication systems have drawn significant attention due to their high resource utilization. In this paper, we consider a reconfigurable intelligent surface (RIS)-aided simultaneously localization and communication system. We first determine the sum squared position error bound (SPEB) as the localization accuracy metric for the presented localization-communication system. Then, a joint RIS discrete phase shifts design and subcarrier assignment problem is formulated to minimize the SPEB while guaranteeing each user’s achievable data rate requirement. For the presented non-convex mixed-integer problem, we propose an iterative algorithm to obtain a suboptimal solution by utilizing the Lagrange duality as well as penalty-based optimization methods. Simulation results are provided to validate the performance of the proposed algorithm.

Keywords: data systems; wireless technology; wireless data transmission; communications technology; locationing; location; performance (capacity); simulation

Free keywords: location awareness; measurement; vehicular and wireless technologies; communication systems; system performance; simulation; reconfigurable intelligent surfaces; joint localization and communication, subcarrier assignment; RIS phase shifts design

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

JUFO rating: 1