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Updated: Jul 23, 2025

Integration of 5G Experimentation Infrastructures into a Multi-Site NFV Ecosystem

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3GPP NR V2X Mode 2: Overview, Models and System-Level Evaluation.

Zoraze Ali¹, Sandra Lagén¹, Lorenza Giupponi¹

¹Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), 08860 Castelldefels, Spain.

IEEE Access : Practical Innovations, Open Solutions

|July 18, 2023

Summary

This summary is machine-generated.

New Radio (NR) V2X enhances cellular vehicular communication with low latency and high throughput. This study evaluates sensing-based resource selection in NR V2X Mode 2, showing significant gains over random selection strategies.

Keywords:

3GPP NR V2X Vehicular communications autonomous resource selection network simulations

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Area of Science:

Telecommunications Engineering
Wireless Communication Systems
Vehicular Technology

Background:

Sidelink technology has evolved from LTE (Long Term Evolution) for Proximity Services (ProSe) and Cellular Vehicular-to-everything (C-V2X).
3rd Generation Partnership Project (3GPP) is advancing sidelink for New Radio (NR) V2X to support advanced driving use cases with enhanced performance.

Purpose of the Study:

To provide a comprehensive overview of NR V2X technology, focusing on Mode 2 for out-of-coverage operation and autonomous resource selection.
To present a system-level simulator for NR V2X, extending the ns-3 based 5G-LENA simulator.
To evaluate the performance of sensing-based resource selection in NR V2X Mode 2.

Main Methods:

Developed a standard-compliant NR V2X simulator based on ns-3 (5G-LENA).
Focused on the design, implementation, and evaluation of sensing-based resource selection for NR V2X Mode 2 in a highway scenario.
Conducted extensive simulations to analyze the impact of various NR V2X parameters on resource selection.

Main Results:

Evaluated the performance of sensing-based resource selection under different NR V2X parameters (numerology, window size, retransmissions, etc.).
Demonstrated performance gains of sensing-based resource selection (3GPP Release 16) compared to random selection (3GPP Release 17).
The study highlights the effectiveness of sensing-based strategies for NR V2X resource management.

Conclusions:

NR V2X offers significant improvements for vehicular communication services.
Sensing-based resource selection in NR V2X Mode 2 provides superior performance compared to random selection.
The developed simulator serves as a valuable tool for future NR V2X research and development.