Target Positioning Accuracy of V2X Sidelink Joint Communication and Sensing

Joint communication and sensing (JCS) is gaining popularity in vehicular scenarios for detecting and localizing nearby objects or other vehicles using vehicle-to-everything (V2X) communications, thus complementing or improving on-board sensors. Despite the numerous benefits, V2X communications, particularly in sidelink, suffer from inter-vehicle interference. In this letter, we evaluate the impact of physical and radio access communication parameters on device-free positioning based on JCS with sidelink V2X. We focus on estimating range, angle, and location in the presence of multi-user interference.