Center for Environmental Research & Technology

Please join us for lunch and a seminar featuring Ph.D. Candidate Saswat Priyadarshi Nayak!

The seminar will take place from 12:00 PM - 1:00 PM, with lunch served from 11:30 AM - 12:00 PM for those who would like to join us beforehand.

Lunch: 11:30 AM - 12:00 PM

Seminar: 12:00 PM - 1:00 PM

Location: Hybrid; RM 105 and Zoom (Join Zoom Meeting, ID: 93414772492, Passcode: 714345)

Presentation Title: Exploring Positioning and Integrity Challenges in CAV Applications: A Roadmap for Holistic and High-Fidelity System Evaluation

Abstract: In Connected and Automated Vehicle (CAV) systems, safety-critical decisions rely on position estimates that are not only accurate but also trustworthy—a concept known as positioning integrity. While integrity monitoring techniques such as Receiver Autonomous Integrity Monitoring (RAIM) have been extensively studied for Global Navigation Satellite System (GNSS)-based positioning, often in combination with kinematic sensors like odometry and perception sensors such as cameras, far less attention has been devoted to integrity monitoring for cooperative positioning solutions that leverage Vehicle-to-Everything (V2X) communication. This presentation will explore the fundamentals of positioning integrity, review the current state of research in both standalone and cooperative positioning, and examine how automotive safety standards and public V2X datasets address—or overlook—integrity challenges. By mapping these gaps and highlighting promising future directions, it will outline a roadmap toward advancing and benchmarking positioning integrity through holistic, high-fidelity system evaluation, enabling safer and more reliable CAV operations.

Bio:  Saswat Priyadarshi Nayak received his Bachelor of Technology degree in Electrical Engineering  from the National Institute of Technology Rourkela, India, in 2018. From 2018 to 2019, he served as a Project Associate in the Department of Aerospace Engineering at the Indian Institute of Technology Kanpur, India, where he worked on problems related to differential games and the stability analysis of an autonomous aquatic observatory. He is currently pursuing a Doctor of Philosophy degree at UCR's Center for Environmental Research and Technology, focusing on the problem of infrastructure-assisted traffic state estimation. He is a recipient of the 2024 Intelligent Transportation Society of California and California Transportation Foundation Scholarship. His primary research interests include vehicle positioning and localization in mixed traffic environments, multi-sensor fusion, and connected vehicle applications. Beyond his core research, he enjoys working on interdisciplinary projects that integrate applied physics and mathematics.