A City-Scale ITS-G5 Network for Next-Generation Intelligent Transportation Systems: Design Insights and Challenges

TL;DR

This paper presents a real-world city-scale V2X communication testbed in Bristol, demonstrating high packet delivery ratios across various scenarios and discussing design insights, challenges, and future improvements for intelligent transportation systems.

Contribution

It introduces a low-cost, high-quality V2X communication testbed deployed in a real urban environment with performance evaluation and insights into system design and challenges.

Findings

High packet delivery ratios achieved in urban, rural, and highway scenarios

Identified instability in transmission rate with single-core devices

Proposed future directions to improve transmission stability

Abstract

As we move towards autonomous vehicles, a reliable Vehicle-to-Everything (V2X) communication framework becomes of paramount importance. In this paper we present the development and the performance evaluation of a real-world vehicular networking testbed. Our testbed, deployed in the heart of the City of Bristol, UK, is able to exchange sensor data in a V2X manner. We will describe the testbed architecture and its operational modes. Then, we will provide some insight pertaining the firmware operating on the network devices. The system performance has been evaluated under a series of large-scale field trials, which have proven how our solution represents a low-cost high-quality framework for V2X communications. Our system managed to achieve high packet delivery ratios under different scenarios (urban, rural, highway) and for different locations around the city. We have also identified the instability of the packet transmission rate while using single-core devices, and we present some future directions that will address that.