Informatics, Electronics and Digital Systems, Digital Electronics, Microprocessors, Heterogeneous Systems
Work description
• Literature review on WiFi localization, with special attention to the WiFi 6 standard, and on the design of reconfigurable smart surfaces (RIS) in the 5GHz band, as well as their respective integration and control methods; • Design of a RIS with at least 16x16 elements, for operation at the 5GHz central frequency, considering support for at least two levels of control over the operational status of each RIS unit element; • Validation through simulation and anechoic chamber testing of the RIS operation and functional characteristics (i.e., signal redirection and channel manipulation capabilities); • Conceptualization and implementation of a RIS-based localization methodology, including a strategy for positioning the RIS (one or multiple) relative to other WiFi points, and a method for channel manipulation and data processing; • Physical integration of the RIS into the base localization system, including adaptation of cabling, power supply, and interface with RIS control boards and control software, and adaptation of the existing software in the base system for localization; • Collection of experimental data in an indoor environment and construction of an annotated dataset ("ground truth") for later analysis; • Evaluation of the effectiveness of the proposed methodology, including quantitative analysis of location accuracy, comparing it to the baseline system without RIS; • Integration with a centralized system by sending the collected data and/or estimated positions; • Preparation of a technical report with results and/or contribution to a scientific article.
Academic Qualifications
Master's degree in electrical engineering, computer science, or a related field;
Minimum profile required
• Experience in CST PCB design• Experience in antenna design• Fluency in English (written and spoken)
Preference factors
• Knowledge of WiFi communications • Familiarity with RIS or metasurfaces • Embedded software • Fluent in Portuguese and English (written and spoken)
Application Period
Since 31 Jul 2025 to 13 Aug 2025
Centre
Telecommunications and Multimedia