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 editorsLuan, Mingan; Wang, Bo; Chang, Zheng; Hämäläinen, Timo; Ling, Zhuang; Hu, Fengye

Parent publicationProceedings of the 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)

Place and date of conferenceHelsinki, Finland19.-22.6.2022



Journal or seriesIEEE Vehicular Technology Conference



Publication year2022

Publication date25/08/2022


Publication countryUnited States

Publication languageEnglish


Publication open accessNot open

Publication channel open access

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


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.

Keywordsdata systemswireless technologywireless data transmissioncommunications technologylocationinglocationperformance (capacity)simulation

Free keywordslocation 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 reportingYes

Reporting Year2022

JUFO rating1

Last updated on 2024-14-06 at 23:07